US PATENT SUBCLASS 475 / 27
.~ Fluid steer control

Current as of: June, 1999
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475 /   HD   PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS

18  DF  STEERING BY DRIVING {6}
27.~ Fluid steer control

DEFINITION

Classification: 475/27

Fluid steer control:

(under subclass 18) Subject matter wherein the plural drive trains* include controlling clutches* or brakes* which are operated by hydraulic or pneumatic pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

23+, for the control of pump-motor units for steering purposes. [figure]