US PATENT SUBCLASS 172 / 460-- .~.~ Tool independently vertically adjustable at transversely spaced points

US PATENT SUBCLASS 172 / 460
.~.~ Tool independently vertically adjustable at transversely spaced points

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

452	DF	WITH ACTUATOR ADAPTED TO LIFT TOOL FOR TRANSPORT ON WHEELED FRAME OR BROADLY CLAIMED IMPLEMENT {37}
459	DF	.~ Pivotable about longitudinal axis (e.g., lateral levelling, etc.) {1}
460		.~.~ Tool independently vertically adjustable at transversely spaced points

DEFINITION

Classification: 172/460

(under subclass 459) Apparatus wherein the earth working element is swingable about two longitudinal axes which are transversely spaced on the apparatus, each of said axes being selectively vertically adjustable.

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

SEE OR SEARCH THIS CLASS, SUBCLASS:

781+, especially subclass 797 and the subclasses there noted for a scraper between front and rear ground supports of a vehicle swingable about two vertically adjustable longitudinal axes.