US PATENT SUBCLASS 369 / 58
.~ Of record carrier

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

53  DF  WITH CONDITION INDICATING (E.G., MONITORING) OR TESTING {3}
58.~ Of record carrier

DEFINITION

Classification: 369/58

Of record carrier:

(under subclass 53) Subject matter wherein the storage medium is monitored or tested.