US PATENT SUBCLASS 173 / 150
.~.~ Advance motor working member coaxial with tool shaft


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

141  DF  ADVANCE CAUSING OR CONTROLLING MEANS {6}
148  DF  .~ Tool advances relative to drive {3}
150.~.~ Advance motor working member coaxial with tool shaft


DEFINITION

Classification: 173/150

(under subclass 148) Apparatus in which the means to cause or control forward movement of the tool includes a motor having a moving power applying member which during operation is adapted to move forward upon an axis substantially coaxial with the axis upon which the tool is moving forward.