US PATENT SUBCLASS 172 / 129
.~ Ground wheel operated marker control

Current as of: June, 1999
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172 /   HD   EARTH WORKING

126  DF  WITH EARTH MARKER {5}
129.~ Ground wheel operated marker control

DEFINITION

Classification: 172/129

(under subclass 126) Apparatus in which the earth working device includes ground-engaging wheels and the marker means is moved relative to the earth working device by power derived from rotation of the wheels.

SEE OR SEARCH THIS CLASS, SUBCLASS:

492, and 493, for actuators adapted to lift a tool for transport wherein power for said actuators is derived from a continuous source of power.