terminal boxes for electric conductors; built-in electrical boxes; switch boxes [electricity]; switchboxes [electricity]; electric switchboxes; switch boxes; terminal boxes; switchboxes; frames and supports for electrical cover plates; electric outlet covers; covers for electric outlets; safety covers for electrical sockets; plates for electrical outlets; junction sleeves for electric cables; electric switch boxes; electrical terminal boxes; housings for electrical connectors; electrical connectors; connectors for electronic circuits; electrical switch cabinets; cabinets adapted to hold signalling apparatus; switchboards; distribution boxes for electrical power; electrical distribution boxes; distribution boxes [electricity]; circuit breakers; control panels [electricity]; junction boxes [electricity]; junction boxes [electricity] for electric wires; junction boxes