US PATENT SUBCLASS 379 / 46
.~ Called line or station condition responsive (e.g., recall if busy)

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

37  DF  EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN'S CIRCUIT) {9}
46.~ Called line or station condition responsive (e.g., recall if busy)

DEFINITION

Classification: 379/46

Called line or station condition responsive (e.g., recall if busy):

(under subclass 37) Subject matter where a condition of a called line or station controls further operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33, for a telephone equipment alarm condition.

209, for this subject matter, in a nonalarm system.