F

ELECTRICAL, ELECTRONIC, ELECTRO-OPTICAL AND ELECTRO-MECHANICAL SIGNALING OR WARNING APPARATUS; NAMELY, TELEPHONE AND TELECOMMUNICATIONS APPARATUS, ELECTRIC SOCKETS, DOOR CHIMES, DOOR BELLS, SIGNAL BELLS, ALARM BELLS, SWITCHES, PUSH BUTTON CONTROLLERS, ELECTRIC WARNING LIGHTS, TRANSFORMERS, PHOTOELECTRIC CELLS, BATTERIES, PRINTED CIRCUIT BOARDS, WIRES AND FUSES, ELECTRONIC SOUND OPERATING DEVICES; NAMELY, SIRENS AND BUZZERS; ELECTRICAL AND ELECTRONIC APPARATUS FOR PROTECTION AGAINST MECHANICAL, ELECTRICAL OR ELECTROMAGNETIC INTERFERENCE

ELECTRIC LIGHT BULBS AND PARTS THEREFOR AND ELECTRIC LIGHT FIXTURES