75807796
Sep 24, 1999
Jun 4, 2002
METALLIC LEVEL RAILROAD CROSSING BARRIERS; LIGHTING SIGNALING SYSTEM, NAMELY, TRACKSIDE RAILROAD SIGNALS IN THE NATURE OF NON-LUMINOUS AND NON-MECHANICAL METAL SIGNS
Metal GoodsLIGHT SIGNALING SYSTEM, NAMELY, TRACKSIDE RAILROAD SIGNALS IN THE NATURE OF EMERGENCY WARNING LIGHTS, NEON SIGNS, LUMINOUS SIGNS, DICHROIC LENSES, COLOR-LIGHT SIGNALS, LIGHT EMITTING DIODES; SYSTEM FOR DETECTION OF TRAINS ON THE TRACK CONSISTING NAMELY OF TRACK CIRCUITS, AXEL COUNTERS, WHEEL DETECTION, VIDEO MONITORS, ELECTRONIC SWITCHING RELAYS; SYSTEM FOR DETECTION OF PASSING TRAINS, NAMELY, TRACK CIRCUITS, AXEL COUNTERS, WHEEL PASSAGE DETECTION UNITS, COMPUTER MONITORS, GLOBAL POSITIONING SOFTWARE, TIMING SENSORS; AND POINT MECHANISM, NAMELY, SWITCHING OPERATING UNITS, LOCKING OPERATING UNITS, BLADE CONTROLLERS, DIRECTIONAL COMPASSES
Electrical and Scientific ApparatusLIGHT SIGNALING SYSTEM, NAMELY, DIRECTIONAL SIGNALS FOR TRAINS; URBAN TRANSPORT VEHICLES, NAMELY, ABOVEGROUND AND UNDERGROUND RAILROAD LOCOMOTIVES AND PASSENGER CARS
VehiclesLIGHT SIGNALING SYSTEM, NAMELY, TRACKSIDE RAILROAD SIGNALS IN THE NATURE OF NON-LUMINOUS AND NON-MECHANICAL NON-METAL SIGNS; CONCRETE, PLASTIC AND WOOD LEVEL RAILROAD CROSSING BARRIERS
Nonmetallic Building Materials