US PATENT SUBCLASS 451 / 423
.~.~ Stationary abrading tool

Current as of: June, 1999
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451 /   HD   ABRADING

415  DF  ATTACHMENT {13}
419  DF  .~ To cutting machine to sharpen blade {2}
423.~.~ Stationary abrading tool

DEFINITION

Classification: 451/423

Stationary abrading tool:

(under subclass 419) Machine knife sharpening attachment wherein the grinding means is immobile during the grinding

operation (i.e., the blade being ground moves relative thereto).

SEE OR SEARCH THIS CLASS, SUBCLASS:

312+, and see the notes thereto for other stationary tool machines.

428, for other stationary tool attachments.