US PATENT SUBCLASS 379 / 419
TERMINAL

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

419TERMINAL {4}
420  DF  .~> Having loudspeaking conversation capability (e.g., hands-free type or speakerphone)
421  DF  .~> Having muting
422  DF  .~> Switch or switch actuator structure {2}
428  DF  .~> Housing or housing component {10}

DEFINITION

Classification: 379/419

TERMINAL:

(under the class definition) Subject matter including an audio reproducer and microphone.

(1) Note. This and indented subclasses also include subcombinations and components peculiar to such devices and not elsewhere classified.

SEE OR SEARCH THIS CLASS, SUBCLASS:

110.01, for a composite terminal.

156+, for key system.

167+, for an intercom system station.

352+, for call address or other line signalling structure at a terminal. 441+, for accessory or auxiliary equipment usable with the subject matter of this subclass.

SEE OR SEARCH CLASS

362, Illumination,

88, for an illuminated telephone instrument.

381, Electrical Audio Signal Processing Systems and Devices,

150+, for a microphone or speaker, per se.