CONSTRUCTION, MAINTENANCE AND INSTALLATION SERVICES OF TELECOMMUNICATION EQUIPMENT; OPTICAL READERS, MAGNETIC READERS AND PRINTERS; ALARM UNITS; COMPUTERS AND AUTOMATED CONTROL UNITS FOR COMMUNICATION EQUIPMENT

TELECOMMUNICATION EQUIPMENT, NAMELY TELEPHONES, SWITCHING UNITS, INTERCOMS, DIALING UNITS, METERS, ANSWERING UNITS, MODEMS, ELECTRONIC APPARATUS FOR TRANSMITTING DATA BY TELEPHONE LINE THROUGH THE HANDSET MICROPHONE OF A TELEPHONE, ELECTRONIC APPARATUS FOR MONITORING TELEPHONE CHARGES, TERMINALS COMPRISED OF A MONITOR AND A CENTRAL UNIT FOR COMMUNICATION BY TELEPHONE LINE; COMPUTERS AND PRINTERS; PRINTED CIRCUITS; HYBRID CIRCUITS; INTEGRATED CIRCUITS; TRANSMITTERS, RECEIVERS AND EMITTERS