US PATENT SUBCLASS 74 / *
.~.~.~ Single clutch shaft

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

640  DF  GEARING {31}
325  DF  .~ Interchangeably locked {11}
*  DD  .~.~ Slidable keys or clutches {3}
*.~.~.~ Single clutch shaft {3}
*  DD  .~.~.~.~> Progressive {2}
373  DF  .~.~.~.~> Selective {1}
376  DF  .~.~.~.~> Single speed forward and reverse {3}