US PATENT SUBCLASS 246 / 475
.~ Dwarf or pot

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

473 R  DF  SIGNALS {12}
475.~ Dwarf or pot

DEFINITION

Classification: 246/475

(under subclass 473) Subject matter having "drawf" or "pot" signals, so called which are low compact signals placed at switches and used mostly in yards where switches are operated from towers.