US PATENT SUBCLASS 37 / 277
.~.~.~ Supported on inclined plane

Current as of: June, 1999
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37 /   HD   EXCAVATING

196  DF  SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE {16}
266  DF  .~ Scraper blade {5}
272  DF  .~.~ V-shaped {5}
277.~.~.~ Supported on inclined plane

DEFINITION

Classification: 37/277

Supported on inclined plane:

(under subclass 272) Apparatus wherein the working faces are carried by a substantially horizontal base plate sloping upwardly from its leading edge.