US PATENT SUBCLASS 375 / 257
CABLE SYSTEMS AND COMPONENTS

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

257CABLE SYSTEMS AND COMPONENTS {1}
258  DF  .~> Transformer coupling

DEFINITION

Classification: 375/257

CABLE SYSTEMS AND COMPONENTS:

(under the class definition) Subject matter where pulses are transmitted on a cable or transmission line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+, for modems which can be used with a cable system.

SEE OR SEARCH CLASS

370, Multiplex Communications, appropriate subclasses for multiplex communication systems using cables.