US PATENT SUBCLASS 475 / 150
.~ Differential drive or control

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

149  DF  ELECTRIC OR MAGNETIC DRIVE OR CONTROL {4}
150.~ Differential drive or control

DEFINITION

Classification: 475/150

Differential drive or control:

(under subclass 149) Subject matter wherein the electric or magnetic drive or control is associated with a differential transmission*.