73793559
Apr 17, 1989
Apr 2, 1991
ELECTRONIC APPARATUS FOR THE TRANSMISSION AND/OR RECEPTION OF ELECTROMAGNETIC WAVES CARRYING INTELLIGENCE IN THE FORM OF SOUND, WRITINGS, IMAGES AND SIGNALS, OR A COMBINATION OF SUCH FORMS; AN ELECTRONIC AMPLIFIER, RECORDER, OR REPRODUCER OF AUDIBLE AND/OR VISUAL INTELLIGENCE; TELEPHONES OR TELEGRAPHS; ELECTRIC RAILROAD AND STREET TRAFFIC SIGNALS AND CONTROLS; ELECTRONIC APPARATUS FOR THE CONTROL AND GUIDANCE OF MILITARY WEAPONS; ELECTRONIC APPARATUS FOR AIR TRAFFIC CONTROL; ELECTRONIC APPARATUS FOR AIR AND MARINE NAVIGATION; ACOUSTIC OR ELECTROMAGNETIC WAVE DETECTORS; ELECTRONIC REMOTE CONTROLLERS; COMPUTING AND DATA PROCESSORS; ELECTRONIC DISCHARGERS AND SEMICONDUCTORS
Electrical and Scientific Apparatus