US PATENT SUBCLASS 192 / 53.51
.~.~.~.~ Cylindrical pin

Current as of: June, 1999
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192 /   HD   CLUTCHES AND POWER-STOP CONTROL

30 R  DF  CLUTCHES {15}
52.1  DF  .~ Progressive engagement {4}
53.1  DF  .~.~ Frictional and positive {5}
53.5  DF  .~.~.~ Axially projecting positive clutch {1}
53.51.~.~.~.~ Cylindrical pin

DEFINITION

Classification: 192/53.51

Cylindrical pin:

(under subclass 53.5) Subject matter wherein the tooth or lug has a substantially circular cross-sectional shape.