US PATENT SUBCLASS 368 / 280
.~ Of particular material


Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

276  DF  CASES {17}
280.~ Of particular material


DEFINITION

Classification: 368/280

Of particular material:

(under subclass 276) Subject matter wherein the case means is comprised of one or more significant substances.