US PATENT SUBCLASS 451 / 278
.~.~.~ Stationary work holder

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
177  DF  .~ Rotary tool {3}
259  DF  .~.~ Rotary disk {10}
278.~.~.~ Stationary work holder {1}
279  DF  .~.~.~.~> Reversing, obverting, or pivoting

DEFINITION

Classification: 451/278

Stationary work holder:

(under subclass 259) Abrading machine using a work holder which does not move during the grinding operation.