US PATENT SUBCLASS 37 / 273
.~.~.~ Adjustable or collapsible apex

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}
273.~.~.~ Adjustable or collapsible apex

DEFINITION

Classification: 37/273

Adjustable or collapsible apex:

(under subclass 272) Apparatus wherein the angle of divergence is adapted to be varied.

(1) Note. The angle might be varied either to change the angle of attack of the working faces when in use, or to facilitate storage of the plow.