(under subclass 193) Subject matter having intermittent contacts or so-called "ramp-rails" used for conducting electric current from the roadway to the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49, 56, 69+, 74, 85, 92, 122, 229+, and 233+, for other systems and devices within the class definition having intermittent-contact systems.
167, and all subclasses mentioned in the search notes appended thereto, for cab and control features.
SEE OR SEARCH CLASS
40, Card, Picture, or Sign Exhibiting,
463+, for circuits on trains completed through intermittent-contact devices on the track.
104, Railways,
279+, for devices for cleaning ice, snow and dirt from continuous and intermittent electrical contacts.
