US PATENT SUBCLASS 246 / 443
.~.~.~ Bed lock

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

415 R  DF  SWITCHES {21}
435 R  DF  .~ Point {8}
442  DF  .~.~ Tongue {2}
443.~.~.~ Bed lock

DEFINITION

Classification: 246/443

(under subclass 442) Subject matter having locking devices of various kinds placed in the beds of tongue-switches for holding the point in position.