US PATENT SUBCLASS 246 / 162
.~ Switch or signal indicators


Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

131  DF  INTERLOCKING {8}
162.~ Switch or signal indicators


DEFINITION

Classification: 246/162

(under subclass 131) Subject matter having devices for indicating the position or motion of a distant switch, signal, or similar movable element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

107, 124, 135, 137, 141, 142, 162, 176, 217, 220, 253, and 476, for other switches and signals provided with indicating means.

SEE OR SEARCH CLASS

340, Communications: Electrical,

825+, for electric selective-signaling systems of general application, subclass 298 for signal box type signaling systems having answer back provision, and subclasses 313+ for answer-back-electric signaling systems.

346, Recorders, appropriate subclasses for recorder systems and recorders.