US PATENT SUBCLASS 172 / 675
.~ Vertically adjustable tool

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

669  DF  WITH WHEEL; OR SUPPORTED ON WHEEL FRAME OR BROADLY CLAIMED IMPLEMENT {6}
675.~ Vertically adjustable tool

DEFINITION

Classification: 172/675

(under subclass 669) Apparatus wherein the earth working element is selectively vertically adjustable with relation to the wheeled frame.

(1) Note. For the meaning of "adjustable" see the class

definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

452+, for tools vertically movable to transport position on a wheeled frame provided with an actuator for raising and lowering the tools.

668, for vertically adjustable tools on a wheeled frame provided with an actuator for effecting such adjustment.