US PATENT SUBCLASS 451 / 450
.~.~ Wetting grindstone


Current as of: June, 1999
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451 /   HD   ABRADING

442  DF  ACCESSORY {10}
449  DF  .~ Cooling {1}
450.~.~ Wetting grindstone


DEFINITION

Classification: 451/450

Wetting grindstone:

(under subclass 449) Cooling accessory for applying a liquid cooling agent to an abrading tool.