Scientific, digital, electronic, electric, weighing, measuring and checking apparatus and instruments; apparatus and instruments for the transmission of digital data via an electric distribution network, apparatus and instruments for conducting, distributing, transforming, measuring, monitoring, accummulation, regulation, surveillance or control of electric current and/or electric consumption; electric and/or electronic apparatus, instruments and components and in particular resistances, potentiometers, regulators, capacitors, diodes, transistors, commutators, switches, light dimmers, transformers, transmitters, fuses, plug sockets, connectors, frequency meters, batteries, battery chargers, adapters, antennae, sockets and electric socket housings, electric cables and leads, time switches, intercoms, apparatus used for supplying electricity, electronic calculators, voltage testers electronic, metal detectors; electric and electronic circuits, integrated circuits; computers and computer peripherals, software; microprocessors, microcontrollers; telecommunications apparatus and telephones, telephone answering machines, fax machines, telex machines, modems, mobile telephones and telephone cables