US PATENT SUBCLASS 173 / 193
.~.~.~ Having fluid motor

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

39  DF  WITH MEANS TO ADJUST POSITION OF AXIS OF TOOL ADVANCE {3}
42  DF  .~ Plural adjustments {1}
190  DF  .~.~ Powered by motor or mechanism {4}
193.~.~.~ Having fluid motor {1}
194  DF  .~.~.~.~> With mechanical movement {1}

DEFINITION

Classification: 173/193

Having fluid motor:

(under subclass 190) Apparatus wherein the motor is a pneumatic or hydraulic piston and cylinder type device.