US PATENT SUBCLASS 235 / 493
.~ Magnetic

Current as of: June, 1999
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235 /   HD   REGISTERS

487  DF  RECORDS {8}
493.~ Magnetic

DEFINITION

Classification: 235/493

Magnetic:

(under subclass 487) Subject matter wherein the coded indicia on or within the record is formed from magnetic materials or substances.

SEE OR SEARCH CLASS

341, Coded Data Generation or Conversion,

15, for magnetic pattern reading type analog to digital converters.

360, Dynamic Magnetic Information Storage or Retrieval,

131+, for records having a continuous coating of magnetic material upon which information is recorded.