US PATENT SUBCLASS 37 / 211
.~.~.~.~ Diverse tools performing different stages of operation

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  DF  .~.~.~ Plural rotary tools {2}
211.~.~.~.~ Diverse tools performing different stages of operation

DEFINITION

Classification: 37/211

Diverse tools performing different stages of operation:

(under subclass 210) Apparatus wherein the implements are differently configured, adapted to accomplish various steps in the process of excavating snow or ice.