US PATENT SUBCLASS 246 / 15
.~.~ Safety systems

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

2 R  DF  TRAIN DISPATCHING {7}
14  DF  .~ Station, block, or train-order signals {3}
15.~.~ Safety systems {1}
16  DF  .~.~.~> Holders

DEFINITION

Classification: 246/15

(under subclass 14) Systems for insuring the proper display of the signal or the due delivery of the train order.

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6, for devices placed upon the train to insure the observance of train orders.