US PATENT SUBCLASS 172 / 426
.~.~.~ Worm gear

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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
423  DF  .~ With actuator {3}
425  DF  .~.~ Gearing {3}
426.~.~.~ Worm gear

DEFINITION

Classification: 172/426

(under subclass 425) Apparatus in which the gearing includes a worm gear.