US PATENT SUBCLASS 370 / FOR 134
.~ Signalling (370/76)

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

FOR 122  DF  FREQUENCY DIVISION (370/69.1) {10}
FOR 134.~ Signalling (370/76)

DEFINITION

Classification: 370/FOR.134

Signalling:

Foreign art collection including means for transmitting signalling information ancillary to the principal information being transmitted, e.g., E and M signalling.