US PATENT SUBCLASS 173 / 161
.~.~ Advance motor control in tool drive manipulating handle

Current as of: June, 1999
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173 /   HD   TOOL DRIVING OR IMPACTING

141  DF  ADVANCE CAUSING OR CONTROLLING MEANS {6}
152  DF  .~ Motor causes or controls advance {8}
161.~.~ Advance motor control in tool drive manipulating handle

DEFINITION

Classification: 173/161

(under subclass 152) Apparatus in which means specifically adapted to be engaged by the hand of an operator to manipulate the tool drive is provided with a relatively movable means to regulate the flow of motivating energy to the motor.