US PATENT SUBCLASS 246 / 66
.~.~.~.~.~.~ Sectional

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

20  DF  BLOCK-SIGNAL SYSTEMS {4}
27  DF  .~ Automatic {5}
28 R  DF  .~.~ Electric {18}
62  DF  .~.~.~ Cab signal or train control {7}
64  DF  .~.~.~.~ Train-carried current supply {3}
65  DF  .~.~.~.~.~ Multiple continuous contacts {1}
66.~.~.~.~.~.~ Sectional

DEFINITION

Classification: 246/66

(under subclass 65) Systems in which the continuous-contact rails, the traction-rails, or both, are divided into sections or blocks insulated from each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+, 65, 67, 68, 73, and 86, for continuous- contact systems.

167+, and all subclasses mentioned in the search notes appended thereto, for cab and control features.