11 LIGHTING FIXTURES; ELECTRIC LIGHT BULBS; STREET LAMPS; FLUORESCENT ILLUMINATING LIGHTING TUBES FOR USE IN THE MANUFACTURE OF ELECTRIC LIGHTS AND LIGHT FOR VEHICLES; DRYING EQUIPMENT, NAMELY, DRYING PAINT OVENS AND COMMERCIAL, DOMESTIC, INDUSTRIAL FOOD DRYERS; SUSPENSION DEVICES FOR DROPLIGHTS, NAMELY, SUSPENSION FRAMES FOR DROPLIGHTS AND LAMPSHADES