US PATENT SUBCLASS 434 / 299
.~ Geology

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

276  DF  SCIENCE {9}
299.~ Geology

DEFINITION

Classification: 434/299

Geology:

(under subclass 276) Subject matter relating to the history of the earth and its life, as recorded in rock or other mineral deposit.