US PATENT SUBCLASS 246 / 378
.~ Rotary block

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

375  DF  CONTINUOUS-RAIL CROSSING {5}
378.~ Rotary block

DEFINITION

Classification: 246/378

(under subclass 375) Subject matter having rotary blocks which carry rail-sections at the crossing-points.

SEE OR SEARCH THIS CLASS, SUBCLASS:

273, and 388, for similar devices.