(under subclass 473) Subject matter having signals on the track or roadway provided with reflectors, which reflect light from the headlight either back to the engineer or forward, as around curves, etc., to notify an approaching train.
SEE OR SEARCH THIS CLASS, SUBCLASS:
20, for track-reflectors used in block-signal systems.
SEE OR SEARCH CLASS
359, Optics: Systems (Including Communication) and Elements,
515+, for signal reflectors, per se, and subclasses 838+ for mirrors, per se.
362, Illumination, 296, for reflectors in combination with illuminating means.
