US PATENT SUBCLASS 37 / 230
.~.~ Manually powered

Current as of: June, 1999
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37 /   HD   EXCAVATING

196  DF  SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE {16}
227  DF  .~ With melter {2}
230.~.~ Manually powered

DEFINITION

Classification: 37/230

Manually powered:

(under subclass 227) Apparatus wherein a human being provides the power to either move or operate the heated excavator.