US PATENT SUBCLASS 379 / 92.03
.~.~ Having central station equipment

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

90.01  DF  TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) {8}
92.01  DF  .~ Polling {3}
92.03.~.~ Having central station equipment

DEFINITION

Classification: 379/92.03

Having central station equipment:

(under subclass 92.01) Subject matter including a central station with specific structure or circuitry for status signal processing.