Computer peripheral devices; electric couplings; interfaces for computers; aerials; switchboards; intercommunication apparatus, namely, Telephones incorporating intercommunication systems; modems; equipment for communication network, namely, Microphones for communication devices; electric monitoring apparatus, namely, Monitor signal amplifiers; materials for electricity mains, namely, Accumulators, electric; coaxial cables; fibre optic cables; battery chargers; transponders; branch b...