US PATENT SUBCLASS 37 / 210
.~.~.~ Plural rotary tools

Current as of: June, 1999
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37 /   HD   EXCAVATING

196  DF  SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE {16}
198  DF  .~ Railway clearer {7}
209  DF  .~.~ Having rotary excavating tool {2}
210.~.~.~ Plural rotary tools {2}
211  DF  .~.~.~.~> Diverse tools performing different stages of operation
212  DF  .~.~.~.~> And V-shaped scraper blade

DEFINITION

Classification: 37/210

Plural rotary tools:

(under subclass 209) Apparatus wherein a plurality of implements is carried either by a plurality of rotary shafts, each carrying an implement, or by a single rotary shaft.