Shure V15 User Manual

the
V15
tcyrw
V
~
Table
Contents
we
Introdi~ctron Kc\ Ratt~re\ and TrxkabAty &plane(!
MIICKOWALIJBe
ti~~~erehptrcal Styjus Tip Total Tmkahltv Index
fhgh
rechnolog Gartr~dge ,\istent Dynanr~c S~abdrter/Ue~lat~c~~er SDE-GII~RI) Smmphfied Xlounring Al~gn~~ient indr~me11IAtron Computer Speaficakons Eree Test Recorci Warrant! Bdck Corer
Benefit\
"
Stylu\ Shank
Stvim
I'roiedton h!ci(fnl
Print-Our
(3%)
Bxk
3
-t
5
68
8-9
40-13
11-15
1
(1
1­1
8
18
19
19
tx)ver
the
This escepliond new
cartridge reirmwnts a qoantuln
leap forwltrd
ptrhmance.
v
cctnstnictio~~ features: perfomme capabilities, and high technolog i~atnunentl\tion.
is
unequaled listt.nirrg pleasure.. . iiskning plcasure
tirat
renow~led re-crvrxes the music:
of
the
sophistirated array of inlpor&nt
refined sound reproduction designed
goes
a step beyond eve11
Yl5
Type
the prfomai~ce!
V15
a
ster,
in
phono cartridge
It
hrinp together a
The
tlxat
of
the world-
I\:
The
ti15
Type
\'
hack
!lot
the erntilion
V
it
brings
type
beuond
to
new
result
give
only
. .
only
the
15
Type V offers
outstanding features and
benetits:
all
these
v
kr;llium M1CKOF:WBeT~sty1us
shank results in superior trackability for more accurate sound reproduction.
*
'aSMTM
reduces record wear and distortion.
*
Iiigh efficiency mgnetic structtire for the
ultin~ate flat freque~jcy response.
*
Dynamic
record warp, dust, and surface static electricity.
*
Exclusive
protection system guards
stylus damage.
*
The highest known trackabiiity at I grant for
extended record and tip life.
*
Precision instrumentation for the critical
atigliment of the stylus to the record.
*
Individually serialized; each cartridge
supplied with a serialized printout of its individual performance.
polished Hyprelliptica' stylus tip
Srabilizer/l)estaticizer
SII)E-f;I:.M)
owrconles
stylus
agairlst accident&
total
trackabilit
Trackahiiity is an importar~t concept introdtic4 by Shure to bring into focus the primary requirement a
phonograph cztridge must meet in playing todafs recordings. Simply stated, Traclxabiiity is measure both denland for a cartridge to cop the hequencies each place &%rent rquirements on the phonogay~h cartridge, yet aneously slrtisfied
to
Of
are ofien due to the high frequenq tfacking chal­leng of high pitched sounds and sharp wdnsients. The challenge at is the tracking of low and mid frequencies. In addition,
of
the stylus' abiiity to stay
grtxtve wdls. Total Trxkabiiity expresses the
entirtr kquenq range.
if
11id1
level con~plex signals are
be accurately rracked.
ali signals, the most dmmding requirenrents
of
tmckng high frequency signals is
least
as imprunt for accurate reproducljon
mistracking of
grnove dmqe. Cntil now this ckdenge
record
i~as
not been met.
any
in
with
Low,
mid, and hgh
all
must
signal resills in
y
contact with
signds over
be
sinlul-
a
as
The
V
LLIB@M
Beryllium MICROWALL/Be Stylus Shank and New Hyperelliptical Tip.. . Combined For Lowest Effective
Mass
Ever!
fk:ryUiunl is the ideal material for a stylus sharlk
due
to
its extrenle liglll weight and high
rigclity.
These ided proprties can ody resuft in superior perfoma~ct. when the materid is structurdy optimked. Shure
fomling a
for thin w&d
mass
of
any
construction is The measure
stihess to effective
has
developed a unique process
0.0005
tube,
inch BerylLiun~ ukra-
res~~lting in
the
lowest eff~tke
stylus shank ever. This unique stylus
cded
?;IIGKO%:4LL/Re.
of
a stylus shank's cayabittty is the
nx~s
ratio
of
the stfucturr called the Shank Rrfomarlce Mio, -with hi$er ratios indicamg better prfomra~~ce The advan-
Cross Sections of Beryllium Stylus Shanks
Solid Rod Thick Wall Tube MICROWwBe
(10
mil
(12
diameter)
1.00*
*Shank Performance Ratio:
stifFness/effective mass, relative to a
10
2
mil diameter solid rod.
mil diameter,
mil
wd)
2.06*
(18
mil diameter,
0.5
mil
6.25*
wall)
iqes that can be reali~ed ttirough the use thm-waiiled tube such illustrated
at
lower Ieft.
as
the &lICROW.4I.L/fk: are
of
a
The truly important Shmk Verfomance Ratio rep­resents the combination of together with geometry can
tile structural advanwes that
prtdde. &%3e materials may have
n~alerial properties
a
high saess and/or low mass, until now pro­cesses have not evolved to gtwn~etric a shank
factors
with a high stjffness to mas ratio. The
take
that proktde
full
advdntak;e of the
the
perforn~arlce of
%!ICKOWM,LiKe shank incorpraks both material
and
properties
structural principies to yield tl~e fri&est hown Shank Perfomlance Katio, rttsulting in unp"-ec"la~ted high frequenq
trskbility.
Nearly doubles high frequency trackability
Nowhere
essentsd
$
an industry sbndard by trackng a
37
mass
with Tmhbifity at an incredible
is
improvement in Trachbility more
than
in the hi$ frequenq rmge, aixlve
Litiz,
%%en the
cm/sec.** The
V15
'bye
IVwas introduced,
V15
l'pe
Y,
with Lslow effective
10
kHz tone at
MfCR~w~IjBe shank, host doubles this,
60
cmjsec." '"n
it
set
practical terms, this means there is atnlost nothing
reords tht the Rpe\'cmot track accil-
put onto rately9 including the "hottest" signds of Super Discs.
in
Trackability since the introduction of the
iYj
Type
It
marks the higgest leap forward
11-all at an oplimum stylr~s force
rodq's
of
one gram.
" "
%ak
Xlocity
The
V
Meets The
Ultra-flat frequency response
Previously, respnse? compromises h perfonn.&nce were required. resonmce in the audio band recjuired compensa­tion in the FillCROVUfBe shank, however, the stylus nnechamicd resonallce freijuenq has hen raised to
represmts
Qpe
arrtl more uniforrr~ high Frequenq chanliel separ.ation.
Improved vertical
&cause of the extremely light weight and sciffncss
of increace tlte length of the simultaneously achieving a reduction in styltls mas. The iilcrea~d lerrgih results in decreasing the vertical watch to the record gtxve and lower distoaion. fkcause verlical tracking angle brce, ing angle. Shttre
tllr
Improved M&ARTMPolished Hyperelliptical stylus tip
The higldj acclamed lillwrefipbcal nude &an~ond son8gur;llton t1~;tt won hgh prax for
MI
order
to
acttieve rttler-&at keyuenq
The eff~ts of the stylus mecha~lic'al
electrical
33
kHz,
well lbeyond the auudi range:
u
I&!
It assures
tubuls
thin-wail
qskrn. Vith the
.50%
impror:emc?nt
&it
respnse? as welvell
tracking
kryllium,
Vl5
over
angle
it
was
Type
V15
'Qpe
this
the
Vf5
as
greaer
imssible to
I'
shank while
effc~live
tracking an& for a better
varies
it
is
neceaafy to desig11 for a s~xific track-
with tracking
brce to acbievc a controlled wrlical tfacking
has
V1S
\I5
Type
therefore designed and speciGed
l'
for I granl tracking force.
rype
I
irtcludec an improveti
version
its
contri-
of
V
the
t~p
2nd
hurnol~!e
hoth
i
crn
boih
1
i
whriti
klli
distortroo
~hanorlc
\ec
peak
hstortron
channels,
6.4%
'
SPHERICAL
bulions distortion.
O
tw~dg
8
Wfl
I
rrorieii
inlerrnoilul:u~trrr
4verJge
i
kil',
2.4% 4.0%l.S% 2.5%1.45
BlRADUL
to
reduced harmonic and intermodulation
Its
HYPERELUPT1C.U.
footj~rint
is
lotlger and narrower than the traditbnd BdiA (Ellilttical) tip-grot~ve contact area. Because the Ryl~ereUipticd footprint geometry is narrower than both the long-conmt slrapes sitcti
as
pre-eminent for reproduction
fact,
as
a result
groove. In
of
the kijperellipticd
area
tortion
(light
distortion The
rriass
tip of the 1'15 the \'I5 Tyy
f<)nnly
to
the stylus s2~ank (not necessariiy guxmteed
with
sywae-cut stems). &)nding cenlent
controlid
fully
of
mass. The
tion to the
bars
(dark
of the rrude, gem-stone quality
l\pe
li:
precise orientation of
to
'Qp
total
eE~ti\~e stylus mass.
The entire dimond
ofthe
tip.
b
graph) and intemodulation
bars)
are
dranatically reduced.
V
is
approximatdy that
Its c$ndricd stem allows
prevent an ttnnecessary incrc..~~
V
tip makes a mii~irnal contribu-
of
the
Y15
Bkdial atid
tile
Ntperbolic,
of
the
sere(>-cut
optimized contact
hoih hmronic tiis-
diamond
the
corliact surfaces
rmi-
is
Qlpe
i
is polisl~ed,
but the areas actually in conact with the record
kkS,%-
pcthshed to reduce surface nojse and
cod
wear.
ii
is
of
care-
are
U
new
A
comprehensive measure of cartridge
trackability..
The development of Shure qttaltified the ability tip to stay in contact Trackabdity critics tor dexribing a catridge's perfoml'mce. However,
Iw
md
audiopMes
.in
a
single
TII
number!
TracMility meastrrements
of
with
becorne universally acceplect by
the dianond stylus
the record pve.
as
the n~ost impomt
far-
by
Shure recogW the need for a more encomp­ing measurement to include such wear,
tip
signals found in today's sive research and mea%uremen& have comprehensive mea$urement!
wear, and the ability to
audiophiie records. Inten-
Total
Tmkabilit y Index
factor?;
track
as
record
complex
Ied
to the
(1T1)
measured
Record Levels
The dots in the chart hve indicate actual mea­sured velocities founci on ~t~odern recorhgs. These singular quencies at their high velocity levels represent trzMility ci~allenge to my cartfidge. However,
of
high
~QWNCY
IN
lam
"hor signds'
level complex
at
the
hquencies
Ere-
signds
ihe complex signals of nrodern recordings are simnlmmus combinations
track
freque~icies and represent the To~al Track-
biliry
Challenge a catndge must meet
k
an) instant, the
drwmds plared upctn
slgnal detem~ne the trackabllrtl rqutrement
plex In order to meet
design must correctlj address
1
hequenr) mgs Slmre
Iras
RH
$3
which enable eiaiua~on of (he trrchhli
ity m each of the range\ \multaneously to ~leld
a
rating
of
mmce
ui
Trackablt) Index
product
a
of
tlon Factor
number, the better
cartridge
the
low,
ttus
developed a test dnd a record (the
the
caftridge'b total trdck~ng i~rfor-
a
singe number, cded
(TTI)
the
TmkahBty ractor and the Incienta-
TTT=TFx
of
ihese
&%cult
mrd, md !ugh kque~rc?
the
rdl-tndge bj the com-
retluirement a c&r~dge
the
all
three
the
Total
The
'fl1
nurltber
IF
Tile
hgher the
Total Trackabdn of
TTI
to
rs
the
Totd Trackability
Index
K7-V
Trackability
The test sigwdJ on tcines wjth relgiw levels of chart
of
&is
establislles a Tmckability Factor (TF) kfor the car­tridge. Tmk;lbility index
Indentation Factor (IF)
In developirrg the Totai Tracliability Ixidex, st*s tip geometry into account, because a cartridge that achieves high
Trdckability life cannot achieves the same Trdchbiliryaith Less rtrord and tip wear.
silks into ixldicars the record atrd tip life to be expcwd
from the combination
geo?ldries. takes these differences into accourlt and pen.Aizes
header tracking
wide
optimjxd contact shaps. 'The ct~art
sanplirjg
a
gmnietries and lracliing forces, haxd upor1 a
tip study
Factor
(TF)
tIw
EKII;
Crctm
the hw, mid, and
orr
Page
10.
is a composite
high
ach
At
a given tracking fo~e, the level
Frequenq ranges
tone bmd upon the
of
signal a cartridge can successfully track WhUe this is a major factor
(TTI),
and
packing brce
tlr
thc expense
he
considered equd
'The
IF
is the computed degree the tip
the
impressionable record
of
tracking forces and
"fo
this end, the Irlderltation Pd~tor
forms
and inferior
ic
is
rlttt
dsc)
of
to
in
the Total
the only factc>r.
hd
to he &ken
record and tip a cxtridge [hat
vinyl.
The
IF
tip
(IF)
tip
geometries,
giving an edge tto Iighter !raking forces and
at
right
shows
of
Indenbrion Factors for various stylus
spnsored
bl-
Shure,
INDENTATION FACTOR
Tip
Geometry
Spher~cal
15~
(
0006
fin
)
Buad~al ehptsal
5xl8/*(0002x 00071n)
Hyperehptsal
5~38fi(0002x 00151n)
Long contact (other)
25X100p(0001x 0041n) 5~50~(0002~0021n)
*
Reference
The
TII
Rating-some comparisons
mat better &a? surement concept
cartadgel
91
'
the
The
mrninlum
highest
(IF)
Tracking
1.0
1.5
loo*
0 76
091
069
103
079
121
092
110
084
to
deinonstrdte th~s
than
wth our extraorcilnar~ nevl
?'TI
for the
&eke mez~ur~d for
Force
ilav
V15
aw
To add penpctlFe, the folioivmg chart .ihows the
[TT
ratings
for
werd
Share
\i
if
phuria cartrdges
Minimum
Model
TII
Rating
91
~15
QW
-
V15
V15
YQE
TO
uon
of
the constderatlons, write Customer kruces, h%anston,
IY
pp
III
qpe
II
hlDlOPA1IES
TTI
rncludtng tfieoretlcal
to
Sl~ure Brotf~en Inc
222
LPalre) 4ve,
iL
60204,
I
S
4
For a complete explana-
81
64
41
(grams)
2.0
0 63
057
065
076 069
mea-
'Qp
cartndgr
7
4
5
0
md
pnlct~cal
2.5
0 54
049
056
065 060
,
\
a
te&no!og
y
cartndae
system
Great care
hllCKOW.4IUk
cartrictg body a finely tuned qstem. inlegation
in
V1S
across the entire audb Four areas of the
attention. redtic& eleclncal ml~dance, contact totegat)., larnr~rateci pole pleces, and encapst~iat~on
Lower impedance
The fewer turns of wire. '!his gives tile
impedance value at the reminds, making the frequenq response to
tion of lii# outptrt and Low impedmce makes the
VIS
Eem, uitl~oitt the dditbnal {wise induced had amps or load srnsitivc tra~isfomers.
llas
been &ken
shank, the completd stylus, and
of
the
Type
\'I5
capacirive and resi%iire loading. The con~bina-
V
ccar@itlg bdg and siyit~s that results
extended high Ereqtlenq Trachbility
i!
and its unprecedented flat resgonse
l'li
Tjpc
V
features higfl output levels with
compatible
to
make the beryllium
It
spectrum.
\
body ment partlcrtlar
total
VI5
of
the
cmridge less sensitive
wiih
ciriudy any pla$ack sys-
is this total
of
the
\'
a lower
frot~t
+
Better electrical contact
Cartridge ixrfomance may be Ilindered by poor electrical contact. Type
\;
proddes goid-plated terminals br high conductivity addition, connections are corrosion resistant to the
sale
k1de8nitely.
Superior laminated pole pieces
The
\;I5
Type
pieces *thin the body wKch set other cartridge designs. The result efficient magnetic strttchlre whic
with the
Totally encapsulated
-
mechanicaf response
bly
to
yield
frequenq respnse.
The cartridge body of the Type V is fomed by encapslilating molding technique internat components rigidly in place to eliminate resonances thereby lessen the stereo effect. This process also ensures performance uniformity longetity, eliminating opn circuits in the electrical components that could render the
For maximt~m conmt, the
from the cartridge
bwause gold high output/loa: loss perfonitance
!'
uses
thin,
an
extend& ntier-fiat cartridge
that
might color or blur the sigwal
the
ccartridge inoperative.
rt)
the tone
is
an inert ward, these
muhi-sectioned pIe
possibility
it
ap-t &om all
is
a higw
it
works
of
the
stylus
that
and
cartridge
of
mure
holds the
short
m.
in
unison asem-
V15
In
an
and
or
The
Dynamic
Stabilizer/Des taticizer
SIDE-GUARD
Stylus
protection system
Shure's exclusive I$nmic Skbiliwr acts like a minidtlre sh~k absorber. m&n?;lining a constant cartridge-to-record distance and brce, eliminating such warprelad problems
grmve $skipping, cartridge bottoming, signal wow?
and even ml&Iier and/or spaker overload. The ~ixous-dznpcd mitn~ic Staljilizer aknuaks
the am-cartridge
Page iincreaces in subaudible output and
causes possible mistrdcking. Slal~ilizer protects the stvlus danl;lge
if
the record.
Them are over fibers h the I$namic Stabitizer. Shnulmeoosl?; they gide silently surface slatic electricity while sweping away n~icroscopic dust particles ar the point of play&dfk.
the
L;vslt"m
In
;urn
is
accidendly dropped
10,000
tiny,
in
the pcmves, disctiarging
uniform mkmg
remnance effect which
addition, the ifitn~ic
ard
record hm
onto
electricdly col3ductive
as
First developlid by Shure for use in the professb~ld broadcat and recording industries-where stylus durability stylus protection ?stern prevents stylus darnqe
which may occur when the cartridge slides acci-
dentally across the record or record or turntable platter.
The to side thrusts on the stylus by wid~dfawing the entire stylus shank and tip safely into the stylus housing before the
This front system demonstrdtes its operation. The arrow
.
shows the direction the stylus takeswlien subjecrect
to
deniands are critical-the
SII)E-(;~
ARI)
stylus protection system resp~nds
shank can be dm%ed.
view
of the SII)E-~;LI~H) stylus prokction
potentdy harmful side thrusts.
srrt~-cuaxo
agai~zst the edge of a
Sirnpfified cartridge
mounting
*ntucfring the
sirell arorrnd
cartridge whiie 3thnpeing
screws
ingenious EX-lock
[he
to
positioii the he&slrell aid ;rt&ch tlxe xrcws.
reducirlg mourrtirrg
&I5
is
3
simple
u.ying
to
through
on
rtrc cztriiig
Tyjx
\'
itr tour Itme arrn 1-led-
cijx.s.~tion. Insread
iiold
hracketx
itltc
hoies, Shure
tippet1
time,
iii
lo
fit
i/ir mclunrrng
!,a
iruts. The%
so
tt1a.1
hot11 Irands are
and Frrrstr%ilior~.
of
pI~cc ou the
Precision Afignmen
instrumentation
DUO-POINT
Alignment
Ewn tire best
bt-mar~cr
\
come\ etlu~plwd vi~th
Insure
r
eproiluct~orr
The Shure I)lO-l"i)tkT hltgnnrcnt Gaogci enable\
iciu
to rccctrd grotnes mintmr/e cbsiortroil catt%d error
This
g'~k~gci is owrltang adjustments. retlticirig the possibility ermr resw work station
boltler that fircilitates cartridge hody dgnnents
titv ga1tge
The
Shurc.
set the horizon&
that
it
stirface. 'This minimizes crossdk while mzxintiz-
ing
stereo irnaging and charlrrel sep;tration.
shims
ahgn~n-e
for
this
Kotlt rnstnrrnerrts
tme or dekter:t.i
IN
Alignment Gauge
and
Stylus
cartridge
it'
not pre~~t*.l\ xlrgrletl The
preciston
alrgn
the
Far
to
a fr~liori
in
a ck3~61y fitted nest, irmtlding both a st;ihle
for
Xet.cilir~g-.Ulgni~~~~n~
is
precisely digr~ed
are l~rovided
ail1
ciebter ptxbr per-
tut,
hgnmenr aid
cartridge
;Ir
the
ii'lstrumertt\
openQI
io
that
it
ts
tito
ltrecrw porrrts that
ih\
interal
tarrge:c.trt to rhc
rrrore aceurnre d~an
of
a clt3rr.e. Tire earnridge
mounting to die headshell and
Stllus
plane
ctf
the cartridge body
in
rci;rtion
LO
enable
arrh
mrfect,
tone arms tfrar do
adjttsimerrt
arr
ew
to
use and
take
6tmblrng
dearsigned
nut",
fit
into
frt~
t
Leveling-
k15
?jpc
to
sound
tracking
ir&itionai
body
allows
)nu
to
sci
rile record
Specid
mmlanenr
not
pro~ttle
w(.n
l~rtle
of
3
on
-
,
to
lndjuiduaf computer
printout
W'ittr
thcc
\'15
Type
\;
corties a
n(w
level
of
accuraq
anti
precisbn in testing. llsing a new computerized
t;vs@m, c@t~& due
testing plqback
system
which fan in8uenee merre are cdihrared out. A conlpilter printout, geileratcd
Type
by
his
I:
It
is idenrified bl
5ys;lslcnr. is mcbseai
in&vidwA earlridge
Specifications
Tracking Force:
Optimum Maximum
Force Exerted by Dynamic Stabilizer: Tip Geometry (Typical):
long contact
Trackability at
cm/sec
400 Hz : 30 cdsec 5 kHz : 80 cmlsec
Total Trackability Index ('ITI): Vertical Tone Arm Resonance:
Channel Balance: Channel Separation:
Output Voltage (Typical):
Frequency Reswnse Limits:
Recommended
Resistance (vpical): Inductance (Typical):
Cartridge Weight: Replacement Stylus:
Optional
Force at the
stylus tip Dynamic
mN (1.Ogram ) I5 mN (1.5 grams)
10 12
5
mN (1.25 grams) 17.5 mS (1.75 grams)
10
mN
peak velocity):
1
kHz : 46
cm/sec
Within 1 5 dB
1 kHz:
10 kHz. I
FREQUENCY IN HERTZ
Load:
tone arm wiring. connecting cables. and Capacitive loading from 100 change from the recommended 250
78
4:
815
6
6 grams
V15V-W5HE, Nude Hyperelliptical tip, 5 x J8p
(
V15V-C-WSG, Nude Spherical tip, l5p i.0006 in.)
rpm Stylus:
to
tlie test record or
lf~e
mealire,-
wialt
every
nomkr
to
?our
Total tone arm setting with
Slabllizer
"operating'
Hyperelliptical, 5p x 38p
(1
gram)
10 kHz : 60
Series
3.2 mV RMS at I kHz at
5
kil
ohms,
330 mH at 1 kHz
0002 x 0015 in.) Black ser~al numbers
\'N578E, Biradial (ellipt~cal) tip.
13 x
5 mN (0.5 grams)
(.2
mil x 1 5 mil)
Tracking force (Typical in
cm/sec
91 7 mlnlmurn
Less than 5 dB rise at Ir Hz in
111
Tone Arm (without ShlE damper)
25
dB
or
greater;
X
dB or greater
cmlsec peak veloclty
in parallel with 250 pF (includes
dc
Red
63p i.0005 x .GO25 in.)
preamphfier input)
pF to $00 pF will cause negligible
pF loading.
serial numbers
V15
SME
V15
type
V
TOTAL TRACKABILITY
INDEX
TEST RECORD
When
you
return
copy
Record.
records
Bdefity
FULL ONE-YEAR ("Shure"),
warrants to the owner of this product that it will be free, in
normal use, of any defects in workmanship and materials for a period of one year from date of purchase. You should retain proof of date of purchase. Shure is not liable for any conse­quential damages. If this Shure product has any defects as described above, carefully repack the unit and return it prepaid to:
If you are not in the United States, return the unit to your dealer or Authorized Service Center for repair. The unit will be repaired or replaced and returned to you promptly, and cannot be repaired or replaced, you may elect to receive a
refund. This warranty does not include stylus wear.
purchase
your
of
the
It
is
spci6caily devoted
phono
222
Shure Brothers Incorporated Attention: Service Department
222
Hartrey Ave.,
Evanston, IL
a
Vli
'l\;pc
V
regstration
new
a
rxdestone ackevernent
cxtridges.
WARRANTY:
Hartrey Avenue, Evanston, Unois
Shure
60204,
carci,
TL'RI17
U.S.A.
Cartridge
we
uiill
send
Trackabitity
in
to
evduating high
Shure Brothers Incorporated
test
arrd
you
Test
60204,
a
if
it
Shure Brothers
222
Evanston,
Copyright
All
Shure
Styli
and
following
3
463
889.
Di35,'351;'~i35,j52;'~i45,022,~245,k39;'0252,k28,'~254:004~
0255,898;
Clrtndges are
US
Patents: 3,055,988
4
194
744.4
D258.586;
275
other
888
patents
manufactured
9,077,521;
Dl93
854,0193
pending.
Hartrey Ave.,
IL
60204, U.S.A.
1982,27A1658 (BE)
under
3,077,522;
934
0201
one
or
more
4,170,758,
803'
Inc.,
of
the
D235
070,
D257:676,
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