US PATENT SUBCLASS 246 / 448
.~ Lock

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

415 R  DF  SWITCHES {21}
448.~ Lock

DEFINITION

Classification: 246/448

(under subclass 415) Subject matter having means other than portable padlocks or tower-operated bolts which lock the switch-rails, switch-rods, or connecting-bars in place, but do not lock parts of the switch-stand.

SEE OR SEARCH THIS CLASS, SUBCLASS:

401+, for rail lock and position indication.