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ELECTROMECHANICAL AND ELECTRONIC TELECOMMUNICATION APPARATUS IN EXCHANGES AND SYSTEMS COMPRISING TELEPHONES, ELECTRICAL CONNECTIONS, SWITCHES, KEYBOARDS AND ELECTRONIC CONTROLS THEREFOR, COMPUTER TERMINAL SCREENS, ALPHA-NUMERIC DISPLAYS, WIRELESS PAGING SYSTEMS COMPRISING RECEIVERS AND TRANSMITTERS, INTERCOM SYSTEMS COMPRISING SPEAKERS, AND MICROPHONES AND ELECTRICAL CONNECTIONS; ELECTRICAL AND ELECTROMECHANICAL TIME INDICATORS AND RECORDERS AND ELECTRICAL AND ELECRONIC CLOCKS

INSTALLING AND REPAIRING TELECOMMUNICATION SYSTEMS

LEASING TELECOMMUNICATION SYSTEMS AND COMPONENT PARTS THEREFOR

CONSULTING SERVICES IN THE FIELD OF DESIGNING PROGRAMS FOR THE OPERATION OF TELECOMMUNICATION SYSTEMS