US PATENT SUBCLASS 188 / 323
.~.~.~ Three shoes

Current as of: June, 1999
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188 /   HD   BRAKES

*  DD  WHEEL {10}
74  DF  .~ Transversely movable {4}
78  DF  .~.~ Expanding {9}
323.~.~.~ Three shoes {1}
324  DF  .~.~.~.~> Rotary cam operatively abutting shoe ends

DEFINITION

Classification: 188/323

(under subclass 78) Device comprising three distinct frictional contacting members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250+, for brake shoe elements, per se.