US PATENT SUBCLASS 188 / 79
.~.~.~ Multiple sets

Current as of: June, 1999
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188 /   HD   BRAKES

*  DD  WHEEL {10}
74  DF  .~ Transversely movable {4}
78  DF  .~.~ Expanding {9}
79.~.~.~ Multiple sets

DEFINITION

Classification: 188/79

Multiple sets of expanding brakes arranged serially or in parallel in contact with the inner rim of a wheel.