US PATENT SUBCLASS 384 / 96
.~.~ Roller cone retaining means


Current as of: June, 1999
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384 /   HD   BEARINGS

91  DF  ROTARY BEARING {8}
92  DF  .~ Roller drill bit {4}
96.~.~ Roller cone retaining means


DEFINITION

Classification: 384/96

Roller cone retaining means:

(under subclass 92) Subject matter including means to hold a roller cone on its supporting shaft.