US PATENT SUBCLASS 246 / 17
.~.~ Rotary, vertical axis

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}
17.~.~ Rotary, vertical axis

DEFINITION

Classification: 246/17

(under subclass 14) Signals which rotate upon a vertical axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

473+, for signal structure.