9 Scientific, nautical, surveying, photographic, cinematographical, optical, weighing, measuring, signaling, checking, rescuing and teaching apparatus and instruments, in particular laser detectors, radar apparatus, sonar, sonar equipment and parts thereof for defense against torpedoes and electronic controls for control of anti-torpedo torpedoes, decoy units and of interferers; sonars, radar apparatus, and electronic jammers in the nature of transmitters; apparatus for recording, transmission or reproduction of sounds or images, data processing equipment and computers; electrical sensors, in particular electro-optical sensors, infrared sensors, and radar sensors, all for sensing vehicles, ships, submarines, underwater vehicles, torpedoes, aircraft, hovercraft, helicopters; microphones, underwater microphones; electronic devices for underwater vehicles, namely, electronic control and navigation devices, power supply section with battery, and sonar head with sonar system; megaphones; transmitters of electronic or acoustic signals; monitoring apparatus, namely, vehicle detection equipment in the nature of video display monitors, computers, image sensors, video cameras, and operating system and application software to detect vehicle location, energy meters for monitoring energy usage, and video monitors