9 pre-recorded audio, video, phonographic and digital audio tape, pre-recorded records in the field of mathematics, science, engineering, economics and law; and blank records, audio and video cassettes, tapes; and compact/laser discs featuring educational and musical subject matter; and audio and video tape or event recorders, stereo receivers, amplifiers, stereo tuners; computer hardware, word processors, computer terminals and furniture for computers, micro-processors, blank computer discs, utility programs for computers, computer dot matrix, impact or laser printers, circuit boards, calculators; satellites; photographic and video and audio equipment, namely photographic and slide projectors, photographic cameras, projection screens, photographic film, namely unexposed and exposed camera film and motion picture film featuring educational and musical subject matter, motion picture and video cameras; telephones, photocopying machines, facsimile machines, television sets, radios, optical lenses and filters, fiber optic cables, volt meters, voltage surge protectors, electrical transformers, electric switches, converters, and electrical and electronic batteries, binoculars, telescopes, vacuum cleaners, anti-intrusion and burglar alarms, smoke detectors, eye glasses, contact lenses, scuba diving air tanks and regulators, and scales