US PATENT SUBCLASS 379 / 45
.~ Central office responsive to emergency call or alarm (e.g., "911", operator position display)

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}
45.~ Central office responsive to emergency call or alarm (e.g., "911", operator position display)

DEFINITION

Classification: 379/45

Central office responsive to emergency call or alarm (e.g., "911", operator position display):

(under subclass 37) Subject matter wherein a central office has equipment to make a connection or provide a display for an emergency situation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

36, for free calling from a paystation.