US PATENT SUBCLASS 72 / 443
.~.~ To control speed of tool

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

429  DF  WITH MEANS TO DRIVE TOOL {11}
441  DF  .~ With means to selectably control movement of tool {3}
443.~.~ To control speed of tool

DEFINITION

Classification: 72/443

To control speed of tool:

(under subclass 441) Apparatus wherein the operative causes regulation of the rate of travel of the tool.