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[ POWER SUPPLIES; INSTRUMENTS AND APPARATUS FOR CONTROLLING ELECTRIC CURRENT, NAMELY, ELECTRICAL CONTROLLERS FOR LAMPS, SPOTLIGHTS, SEARCH LIGHTS, AND CAMERA LIGHTING ]

ELECTRICAL LAMP FIXTURES, LIGHT REFLECTORS, LUMINARY REFRACTOR PANELS; SCREENS AND GLOBES, LIGHTING FIXTURES; ACCESSORIES FOR THE AFOREMENTIONED GOODS, NAMELY, DEVICES FOR CONTROL OF COLOR, BRIGHTNESS, FOCUS, AND BEAM CHARACTERISTICS FOR LIGHT EMITTING DEVICES, NAMELY, BARNDOORS, COLOR CHANGERS, PROJECTORS, FOLLOW SPOTS, DIMMERS, SHUTTERS, AND DOUSERS, ELECTRICAL PRESWITCHES FOR LAMPS, SPOTLIGHTS, SEARCHLIGHTS, AND CAMERA LIGHTING