US PATENT SUBCLASS 47 / 1.0 1R
MISCELLANEOUS

Current as of: June, 1999
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47 /   HD   PLANT HUSBANDRY

1.0 1RMISCELLANEOUS {1}
1.0 1F  DD  .~> Modified earth's surface {1}

Unofficial Alpha Subclasses: 1R 1F 1T