US PATENT SUBCLASS 74 / 464
.~.~.~.~ Antifriction

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

640  DF  GEARING {31}
457  DF  .~ Teeth {3}
460  DF  .~.~ Spur {2}
462  DF  .~.~.~ Form {2}
464.~.~.~.~ Antifriction {1}
465  DF  .~.~.~.~.~> Roller

DEFINITION

Classification: 74/464

(under subclass 462) Devices, in which the teeth embody antifriction means.