US PATENT SUBCLASS 379 / 396
.~ Visual signalling (e.g., lamp)
Current as of:
June, 1999
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379 /
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TELEPHONIC COMMUNICATIONS
387
DF
SUBSTATION OR TERMINAL CIRCUITRY
{7}
396
.~ Visual signalling (e.g., lamp)
DEFINITION
Classification: 379/396
Visual signalling (e.g., lamp):
(under subclass 387) Subject matter to modify or emit light in response to one or more terminal conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
376+, for visual call alerting.