US PATENT SUBCLASS 74 / 344
.~.~.~.~ Progressive

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  .~.~ Longitudinally slidable {5}
*  DD  .~.~.~ Multiple spur gears {4}
344.~.~.~.~ Progressive {1}
345  DF  .~.~.~.~.~> Direct clutch and drive

DEFINITION

Classification: 74/344

Transmissions under Longitudinally slidable composed of multiple sliding spur gears on a plurality of shafts, which gears may be shifted manually to provide a progressive plurality of speeds.

SEE OR SEARCH THIS CLASS, SUBCLASS:

337.5, for cam operated controls for interchangeably locked gearing.