US PATENT SUBCLASS 37 / 197
.~ Process

Current as of: June, 1999
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37 /   HD   EXCAVATING

196  DF  SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE {16}
197.~ Process

DEFINITION

Classification: 37/197

Process:

(under subclass 196) A method including steps performed when either clearing the surface or preparing the snow or ice.