(under subclass 100) Subject matter having means provided for actuating audible or visible signals upon the cab or train or for stopping it or controlling its speed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
167+, and all subclasses mentioned in the search notes appended thereto, for cab and control features.
257+, and all subclasses mentioned in the search notes appended thereto, for fluid-pressure-motor structure.