9
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.
cleaning attachments for built-in home vacuum systems - comprising metal wands, a metal wand connector, a floor tool, a rug tool, a wall brush, a crevice tool, and an upholstery tool sold as a unit; and vacuum test kits for built-in home vacuum systems comprising a vacuum gauge and adapter; electrical security equipment-namely, remote telephone bells; strobe flashers and alarms; vehicle back-up alarms; horns; alarm bells; sirens; howlers; buzzers; alarm bell housings for reset mounting; bell boxes; transformers; water-tight pushbuttons; relays for bells, buzzers, and howlers; junction boxes; and emergency power-failure-alarm flashing-and-sounding exit signs; electrical lighting fixture equipment-namely, swag outlet adapters, pendant fixture adapters, outlet junction canopies, outlet box covers, power cubes, cord-plug sets, flexible angle connectors, conduit tract connectors, portable track bases, dimming controls for incandescent and fluorescent lamps, power hooks, power cords, safety chains, swivel aligners, photocontrols, shock-absorbing suspension fittings, universal joint outlet box covers, ceiling lamp holders, swivel attachment plugs, strain reliever cord grips, and junction boxes; wall speed-controls for ceiling fans, and ceiling adapters for ceiling fans; and built-in home vacuum systems comprising an electrical vacuum power unit, wall tubing, wall inlets, power brush (with wand sections, cord channel, and clamps), filter bags, hose, and hose hangers; and optional equipment for such home vacuum systems-namely, shag rug cleaner and carpet brush attachments; recessed-light trims and housings
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
commercial, industrial, institutional, and residential electric lighting fixtures; combination mirrors and lights; combination ceiling-fans-and-lights; fan-heat-ventilator-light combinations; and optional parts for the foregoing-namely, louvers, dome reflectors, heat-resistant glass covers, and angle reflectors
20
Furniture, mirrors, picture frames; goods (not included in other classes) of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials, or of plastics
mirrors and bathroom mirror-cabinets