US PATENT SUBCLASS 246 / 449
.~ Tie bars

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

415 R  DF  SWITCHES {21}
449.~ Tie bars {1}
450  DF  .~.~> Adjustable {1}

DEFINITION

Classification: 246/449

(under subclass 415) Subject matter having rods connecting the two moving rails of a switch and determining their spacing.