US PATENT SUBCLASS 246 / 146
.~.~ Electrical locking

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

131  DF  INTERLOCKING {8}
143  DF  .~ Manual actuation {3}
146.~.~ Electrical locking

DEFINITION

Classification: 246/146

(under subclass 143) Subject matter in which the locking mechanism is effected by electrical means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, 19, 25+, 106, 133+, 139, 159, and 165, for details of electric locking.