US PATENT SUBCLASS 246 / 220
.~ Switch signals

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

218  DF  ELECTRIC ACTUATION {9}
220.~ Switch signals

DEFINITION

Classification: 246/220

(under subclass 218) Subject matter, having signals which are electrically controlled or actuated for indicating the position of track-switches.

SEE OR SEARCH THIS CLASS, SUBCLASS:

107, 122+, 162, 176, 217, and 476, for signals and indicators.

111+, 118+, 120+, and 476, for related systems and devices.