US PATENT SUBCLASS 172 / 122
.~.~ Drum with teeth or blades


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

35  DF  WITH DRIVE MEANS FOR TOOL OR CLEANER {37}
118  DF  .~ Tool driven about axis transverse to draft line {5}
122.~.~ Drum with teeth or blades


DEFINITION

Classification: 172/122

(under subclass 118) Apparatus which comprises a relatively large diameter drum or roller-like member having spaced about the periphery thereof a plurality of teeth, blades, or like earth working parts or portions.

(1) Note. The peripheral surface of the drum should be in ground contact as distinguished from a small diameter supporting shaft for teeth, blades, cutters, or like earth working portions, which shaft would be spaced above the ground.

SEE OR SEARCH THIS CLASS, SUBCLASS:

554, for rolling nondriven tools comprising drums having axially spaced teeth or blades thereon.

SEE OR SEARCH CLASS

492, Roll or Roller, 30+, for a roll, per se, not elsewhere provided for, having surface projections, indentations or slits.