US PATENT SUBCLASS 175 / 370
.~.~.~ Released by antifriction bearing disassembly

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

327  DF  BIT OR BIT ELEMENT {21}
331  DF  .~ Rolling cutter bit or rolling cutter bit element {26}
369  DF  .~.~ Stub axle cutter securing means {1}
370.~.~.~ Released by antifriction bearing disassembly

DEFINITION

Classification: 175/370

(under subclass 369) Apparatus in which the rolling cutter element is journaled on the axle or pin by a bearing having rolling elements which may be removed from their races to provided for removal of the rolling cutter element.