9 Scientific, nautical, surveying, electric, electronic, optical, weighing, measuring, signaling, checking, life-saving and teaching apparatus and instruments, namely, electronic-dynamic remote controls for signals, balancing apparatus, namely, scales, survey apparatus, namely, surveying chains, surveyors' levels, binoculars, electronic-dynamic remote controls for railway points, speed indicators for use in land vehicles, ammeters, acoustic sound alarms, fire alarms, speedometers for vehicles, radars, and fire-extinguishers; apparatus for recording, transmission or reproduction of sound or images, namely, audio cassette recorders, blank audio and video disks and cassettes, audio cassette players, CD players, video screens, video projectors, camcorders, video recorders, video cassette players, photographic and cinematographic cameras, and exposed photographic and cinematographic film; blank magnetic data carriers; recording discs; automatic vending machines; cash registers, calculating machines, data processing equipment, namely, data processors; and computers