traffic control apparatus for land use, namely, electric variable message signs for highways and parking lots; traffic control apparatus for sea use, namely, electric variable message signs, marker buoys, navigational buoys and signaling buoys, radio transmitters and radio receivers, and flasher programmers, namely, remote electronic and solar powered controllers for programming buoy lights and micro processor based radio receivers therefor
Electrical and Scientific Apparatustraffic control apparatus for land use, namely, light semaphores, signal warning lights, hand held lights and flashlights for railway and highway use; traffic control apparatus for sea use, namely, buoy lights, electric lanterns, beacon lights, and flashers, namely, strobe lights; and traffic control apparatus for air use, namely, airport runway lights
Environmental Control Apparatus