US PATENT SUBCLASS 192 / 66.21
.~.~.~ Plural radially spaced surfaces
Current as of:
June, 1999
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192 /
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CLUTCHES AND POWER-STOP CONTROL
30 R
DF
CLUTCHES
{15}
66.1
DF
.~ Axially engaging {5}
66.2
DF
.~.~ Conical or frustoconical {3}
66.21
.~.~.~ Plural radially spaced surfaces
DEFINITION
Classification: 192/66.21
Plural radially spaced surfaces:
(under subclass 66.2) Subject matter, with two or more concentric conical or frustoconical surfaces on each engaging member.