Sockets, plugs and other contacts (electric connections); contacts, electric; connections, electric; connectors (electricity); wire connectors (electricity); junction boxes (electricity); distribution consoles (electricity); distribution boxes (electricity); material for electricity mains (wires, cables); wires, electric; couplers (data processing equipment); electronic tags for goods; phototelegraphy apparatus; weighing apparatus and instruments; calibrating rings; marking buoys; branch boxes (electricity); acoustic couplers; projection apparatus; measuring instruments; optical apparatus and instruments; cables, electric; identification threads for electric wires; copper wire, insulated; junction sleeves for electric cables; coaxial cables; terminals (electricity); electricity conduits; switches, electric; circuit breakers; distribution boards (electricity); connections for electric lines; relays, electric; voltage surge protectors; control panels (electricity); transformers (electricity); heat regulating apparatus; electrolysers; fire extinguishing apparatus; radiological apparatus for industrial purposes; life saving apparatus and equipment; push buttons for bells; containers for contact lenses; batteries for lighting; slides (photography); decorative magnets