US PATENT SUBCLASS 475 / 247
.~.~.~ Ball bearing

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

220  DF  DIFFERENTIAL PLANETARY GEARING {8}
230  DF  .~ Bevel gear differential {4}
246  DF  .~.~ With roller bearing between gear and its support {1}
247.~.~.~ Ball bearing

DEFINITION

Classification: 475/247

Ball bearing:

(under subclass 246) Subject matter wherein said bearings are in the shape of a round ball.