Anti-theft devices and alarm systems for the home, namely, home access control and alarm monitoring systems, home burglar alarms; scientific, nautical, surveying and electric apparatus and instruments, namely, satellites for scientific purposes, surveying machines and instruments; electric cables; electric switches; electronic apparatus and instruments, namely, electronic cables, electronic circuit boards; television sets; set-top units for television sets; radios; radios for recordings, radio transmitters, radio telephones; record players; records, namely, phonograph records featuring music, blank record disks; cassettes, namely, blank audio cassettes, audio cassettes featuring music; audio and video cassette players; video recorders, namely, video cassette recorders, video tape recorders; optical readers for disks; photographic, cinematographic, optical, weighing, measuring and signaling apparatus, namely, photographic projectors, cinematographic machines, and apparatus, optical cables, weighing equipment, namely, scales and balances, measuring instrumentation and apparatus, namely, digitizers, signaling buoys; cameras; apparatus for recording and transmitting television shows; repeaters for radio and television stations; radio and television aerials; spectacles and sunglasses; magnifying glasses; monitoring, inspection, emergency, life-saving and teaching apparatus, namely, baby monitors, cameras for monitoring and inspecting equipment in a nuclear power station, emergency warning lights, life-saving rafts, medical teaching mannequins; automatic vending machines and mechanisms for coin or token-operated apparatus, namely, coin acceptors for separating good coins from counterfeits; sound amplifiers and projectors; cash registers, calculating machines, namely, calculators, calculating scales, fire extinguishers; electric irons; computer programs, namely, computer programs for use in database management in the field of music, computer programs for word processing in the field of travel, computers; computer printers; plugs, namely, electrical plug device enabling connection and disconnection of power and/or control cables and microprocessors for computers, modems, facsimile machines, telephone apparatus; protective helmets for sports and for safety at work