US PATENT SUBCLASS 379 / 388
.~ For loudspeaking terminal


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

387  DF  SUBSTATION OR TERMINAL CIRCUITRY {7}
388.~ For loudspeaking terminal {2}
389  DF  .~.~> With circuitry for voice control of transmission direction
390  DF  .~.~> With amplification or attenuation level control


DEFINITION

Classification: 379/388

For loudspeaking terminal:

(under subclass 387) Subject matter including a terminal set having an electrical-to-audio signal transducer which produces an audible signal of sufficient intensity to be intelligible to a user not in contact with the telephone terminal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+, for loudspeaking terminal structure.

432, for a loudspeaking terminal housing.