9 Flow meters and fluid meters for gas, water and thermal energy; fluid oscillators, electromagnetic static flow meters, electronic or mechanical electricity meters; spare parts related to such flow meters, prepayment apparatus for such flow meters and meters, namely, token-operated, coin-operated, card-operated, smart-card operated and keypad operated meters for electricity, gas and fluid flow meters and supply, apparatus for the memorization of data related to such flow meters, namely, event recorders and computers, apparatus, namely, radio transmitters, cable transmitters for the electronic transmission of data, systems consisting of computers and computer software for use in data management, radio transmitters, cable transmitters, computer network hubs and computer printers for remotely reading and/or remotely transmitting, and/or remotely retrieving and reviewing data related to such meters; electronic modems, electronic payment terminals, terminals for transaction management