Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking, life-saving and teaching apparatus and instruments, namely, scales, compasses; navigation, life preserving and life saving devices, namely, inflatable floatation devices, graduated rulers, cinematographic film, optical cables, railway-signals; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electric transformers, electric switches; Astronomical spectrographs, Aeronautical radio communication machines and apparatus, Audio-Visual receivers, namely, televisions and television monitors; computer monitors and displays, Apparatus for recording, transmission and reproduction of sound or images, multimedia Projectors for recording, transmission and reproduction of sound or images, Audio and videocassette recorders and players, Apparatus for speech recording and replaying, blank magnetic and digital data carriers, blank recording discs, automatic vending machines and mechanisms for coin operated apparatus, namely, coin changers; cash registers, calculating machines, data processors and computers; fire extinguishers, CDs and DVDs featuring musical sound recordings, MP3 and MP4 players, DVD stereo Tuners, Digital Video Broadcasting apparatus, namely, DVB Tuners for TVs and TV or computer monitors, Asbestos safety screens for firemen, Telephones, cell phones, mobile phones, Satellite and satellite receivers and transmitters, antennas, Amplifiers for use with wireless communications apparatus; Apparatus for transmission of communications; Apparatus for transmitting and reproducing sound or images, CD and DVD writers and scribes, namely, CD and DVD drives with integrated digital engraver for diskette surfaces and labeling and direct printing abilities, Light regulators, cameras, electronic sound sensors, HiFi devices, namely, radio transmitters, image transmitters, namely, televisions and television monitors; Amplifiers, Adapters, Apparatus for wireless transmission of acoustic information, Adapter for use with wireless communications apparatus, modems and LAN cards in the nature of computer cards for connecting computers or portable computer devices to computer networks, telefax and telecopy machines, monitoring apparatus, namely, baby monitors, video monitors for traffic, roads, highways, tunnels and railways, security, scientific, environmental and industrial monitoring systems comprised of voltage monitor modules; Luminous mechanical signalling panels, namely, electrically and electronically controlled signalling panels comprised of digital signal processors for urban and road traffic, railways, ships, vessels, sea and air traffic; Computer chips in the nature of integrated circuits and microchips; GPRS and GPS transmitters and receivers, radio telephony sets comprised of radio transmitters; Audio and Visual equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, TVs and television monitors,crossovers and speaker housings; Alarm central units, Apparatus for testing gas, liquids and solids, Accessories for lighting fixtures, namely, plastic pole with electrical source in protective cover, Apparatus for converting electronic radiation to electrical energy, namely, photovoltaic solar modules, photovoltaic roofing members, photovoltaic cladding panels, photovoltaic solar-thermal hybrid modules, Accumulator boxes and jars