REPEATER IN UNSPECIFIED TYPE COMMUNICATIONS LINE OR CHANNEL(E.G., RELAY STATION):
(under the class definition) Subject matter comprising a generically recited transmission path (e.g., telecommunications or communications line) having signal retransmitting or amplifying equipment in the path.
(1) Note. This subclass is directed to such subject matter in which the line is not identifiable as a particular communication line (e.g., telephone, telegraph).
SEE OR SEARCH CLASS
178, Telegraphy,
70+, for a telegraph repeater.
330, Amplifiers, appropriate subclasses for an amplifier.
370, Multiplex Communications,
274, 279, 293, 315+, 492, and 501+ for repeaters used in multiplex communications. 375, Pulse or Digital Communications,
