US PATENT SUBCLASS 172 / 102
.~.~ Tool moves in horizontal, transverse path

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

35  DF  WITH DRIVE MEANS FOR TOOL OR CLEANER {37}
101  DF  .~ Tool guided for rectilinear reciprocation {1}
102.~.~ Tool moves in horizontal, transverse path

DEFINITION

Classification: 172/102

(under subclass 101) Apparatus in which the guide means limits the movement of the earth working elements to a path transverse to the direction of draft and lying in a horizontal plane.