US PATENT SUBCLASS 370 / 214
SIMULTANEOUS TELEGRAPHY AND TELEPHONY


Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

214SIMULTANEOUS TELEGRAPHY AND TELEPHONY


DEFINITION

Classification: 370/214

SIMULTANEOUS TELEGRAPHY AND TELEPHONY:

(under the class definition) Subject matter including concurrent transmission of bidirectional pulse information signal and audio signal over a single transmission channel.

SEE OR SEARCH CLASS

379, Telephonic Communications,

108.01+, for alternative transmission of a telegraph or telephone signal over a single channel.