US PATENT SUBCLASS 451 / 288
.~.~.~.~.~.~ Having pressure plate

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}
283  DF  .~.~.~ Work rotating {2}
285  DF  .~.~.~.~ Rotary work holder {6}
287  DF  .~.~.~.~.~ Planar surface abrading {1}
288.~.~.~.~.~.~ Having pressure plate

DEFINITION

Classification: 451/288

Having pressure plate:

(under subclass 287) Abrading machine including means bearing directly upon the work to apply grinding pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

286, for a similar machine including a pressure plate in combination with a rotary work holder loosely confining the workpiece.