US PATENT SUBCLASS 172 / 394
.~ Disk type tool

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


172 /   HD   EARTH WORKING

387  DF  WITH WHEEL SUBSTITUTE (E.G., RUNNER, ETC.) {6}
394.~ Disk type tool

DEFINITION

Classification: 172/394

(under subclass 387) Apparatus in which the earth working element comprises a circular platelike member which is given a rotating motion by the resistance of the earth as it is drawn thereover.

(1) Note. The circular platelike member may be plane, convex or concave in cross-section.