US PATENT SUBCLASS 37 / 201
.~.~ Explosive

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}
201.~.~ Explosive

DEFINITION

Classification: 37/201

Explosive:

(under subclass 198) Apparatus including means for blasting through snow or ice with an explosive.