US PATENT SUBCLASS 384 / 494
.~.~.~.~ Ball and roller bearings

Current as of: June, 1999
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384 /   HD   BEARINGS

91  DF  ROTARY BEARING {8}
445  DF  .~ Antifriction bearing {9}
456  DF  .~.~ Radial bearing {9}
490  DF  .~.~.~ Ball bearing {17}
494.~.~.~.~ Ball and roller bearings

DEFINITION

Classification: 384/494

Ball and roller bearings:

(under subclass 490) Subject matter including a roller bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

452, for plural bearings one of which is a thrust bearing.