US PATENT SUBCLASS 379 / 90.01
TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE)

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

90.01TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) {8}
91.01  DF  .~> Credit authorization {1}
92.01  DF  .~> Polling {3}
93.01  DF  .~> Having transmission of a digital message signal over a telephone line {9}
100.01  DF  .~> To produce visual-graphic copy (e.g., facsimile) {14}
101.01  DF  .~> Audio program distribution
102.01  DF  .~> Remote control {4}
106.01  DF  .~> Remote indication over telephone line (e.g., telemetry) {4}
108.01  DF  .~> Telegraphy {1}

DEFINITION

Classification: 379/90.01

TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE):

(under the class definition) Subject matter wherein a nontelephone signal is transmitted over a conductor of telephone signals, or a telephone signal is transmitted over nontelephone electrical circuitry.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66, for a telephone carrier over a power line.

110, for a composite telephone set.

SEE OR SEARCH CLASS

340, Communications: Electrical,

310.01+, for signalling over a diverse electrical line.

370, Multiplex Communications, appropriate subclasses for simultaneous transmission of a telephone signal and another electrical communications signal, or multiplexing plural telephone signals, over a common channel.