US PATENT SUBCLASS 477 / 50
.~.~ Fluid pressure control

Current as of: June, 1999
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477 /   HD   INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL

34  DF  TRANSMISSION CONTROL {15}
37  DF  .~ Continuously variable friction transmission {8}
50.~.~ Fluid pressure control

DEFINITION

Classification: 477/50

Fluid pressure control:

(under subclass 37) Subject matter wherein the steplessly variable friction transmission is regulated by a device operated by pressure of a liquid or gas.