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Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
photographic equipment, and/or photographic accessories, and/or photographic supplies-namely, photographic cameras; photographic camera, projector, and enlarger carrying cases; lens boards; holders for sensitized material-namely, plate holders, plate magazines, plate septums, film pack adapters, cut film holders, cut film magazines, cut film septums and roll film holders; focusing panels-namely, ground glass screens and their supporting frames; camera shutters-namely, focal plane shutters and between-the-lens-shutters; detachable camera backs; camera supports-namely, camera stands, tripods, and tripod heads; film; screens and picture masks for identification units for taking pictures for identification purposes; lenses-namely, photographic objectives and supplementary lenses; view finders; filters; sunshades; flash synchronizers; photographic lighting equipment-namely, reflectors for use with photo-flash bulbs, photo-flash side-lighting assemblies sold as a unit and comprising battery cases, extension tubes, battery case clamps, battery case heads, reflector supports, switches and outlets, flash bulbs, batteries, and connecting cords for use with photo-flash side-lighting equipment; microfilm assemblies-namely, a recording camera, the case therefor, a holder for supporting the case with the camera mounted therein, holders attachable to the case for supporting flood lights, and the mechanism for actuating the camera triggering means; shutter trippers-namely, solenoid trippers, and hand operated cable type remote control shutter release devices; enlargers; negative identifiers-namely, tabs for mounting in septum and plate holders to permit photographing an identifying numeral or other indicia on a negative to identify the picture taken; rangefinders; detachable focusing light beam holders for rangefinders; and parts for such equipment, accessories, and supplies-namely, camera racks, camera backs, camera bellows, camera fronts, camera beds, camera bed guides, camera body release cables, camera handles, camera doors, parallax eye-pieces, camera curtains, open frame viewfinders for cameras, camera knobs, camera bed blocks, camera pinions, camera springs, focusing screens, camera plates, camera gears, camera levers, camera bodies, camera brackets, photographic slides, fabric hinges for film holders, light-proof bags for film magazines, film magazine fronts, film magazine backs, camera peep-sights, calibrated dials for photographic equipment, scales for photographic equipment, lens caps for photographic equipment, and arms for coupled rangefinders for cameras; and audio visual equipment-namely, sound and silent motion picture projectors, film strip projectors, slide projectors, tv projectors, teaching machines sales aids-audio visual, overhead projectors, printed teaching programs, opaque projectors, equipment enclosures, film-strips, amplifiers, film storage containers, viewers, airborne projectors, magnetic and optical sound pick-ups, visual aids and language training machines