US PATENT SUBCLASS 37 / 278
.~.~.~ Manually powered
Current as of:
June, 1999
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37 /
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EXCAVATING
196
DF
SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE
{16}
266
DF
.~ Scraper blade {5}
272
DF
.~.~ V-shaped {5}
278
.~.~.~ Manually powered
DEFINITION
Classification: 37/278
Manually powered:
(under subclass 272) Apparatus wherein a human being provides
the power to either move or operate the moldboard.