US PATENT SUBCLASS 246 / 400
.~.~ Key retaining

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


246 /   HD   RAILWAY SWITCHES AND SIGNALS

393  DF  SWITCH STANDS {8}
395  DF  .~ Resetting {5}
400.~.~ Key retaining

DEFINITION

Classification: 246/400

(under subclass 395) Subject matter having switch keys which cannot be removed from the switch-lock until the switch has been properly reset and locked.

SEE OR SEARCH THIS CLASS, SUBCLASS:

414, for locks built into the structure of the switch-stand.

SEE OR SEARCH CLASS

70, Locks,

389, and 441 for lock and latch structure.