US PATENT SUBCLASS 172 / 714
.~ Plural earth engaging parts relatively movable because of operation

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

681  DF  TOOL, STANDARD OR CONNECTION {32}
714.~ Plural earth engaging parts relatively movable because of operation {2}
715  DF  .~.~> Rotary landslide
716  DF  .~.~> Movable moldboard for inverting furrow slice {2}

DEFINITION

Classification: 172/714

(under subclass 681) Apparatus in which the implement has a plurality of earth-engaging portions which may move relative to one another as a result of the operation of the implement in the soil.

(1) Note. The plurality of earth-engaging portions may be different soil moving portions of tool or may be a tool and runner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

657+, for plural tools which are relatively movable as the result of operation.

664+, for actuating means for plural relatively adjustable tool or earth-engaging parts.

736, for selectively adjustable tool or earth- engaging parts.