US PATENT SUBCLASS 246 / *
.~.~ Switch stands

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

131  DF  INTERLOCKING {8}
143  DF  .~ Manual actuation {3}
*.~.~ Switch stands {1}
144  DF  .~.~.~> Signal-actuating {1}