US PATENT SUBCLASS 451 / 388
.~ Vacuum

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


451 /   HD   ABRADING

364  DF  WORK HOLDER {10}
388.~ Vacuum

DEFINITION

Classification: 451/388

Vacuum:

(under subclass 364) Work holder in which the workpiece is held in place by atmospheric pressure brought into play by exhaustion of air from one side of the workpiece.

SEE OR SEARCH CLASS

279, Chucks or Sockets,

3, for a vacuum-operated chuck mechanism, and see the notes thereto for similar subject matter.