US PATENT SUBCLASS 246 / 108
TIME INDICATION, AUTOMATIC


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

108TIME INDICATION, AUTOMATIC {2}
109  DF  .~> Flow retarded
110  DF  .~> Time limit expired


DEFINITION

Classification: 246/108

(under the class definition) Systems and devices which include means for giving a time indication concerning trains which have previously passed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

109, 110 and 123, for time-indication systems.