GRASS VALLEY GROUP

TELEVISION AND RADIO BROADCASTING APPARATUS AND PARTS THEREOF INCLUDING MODULAR ELECTRONIC EQUIPMENT EMBRACING [ POWER SUPPLIES, ] AMPLIFIERS, GENERATORS, [ OSCILLATORS, COUNTERS, ACQUISITION CIRCUITS; ] ELECTRONIC SYSTEMS EMBRACING SYNC GENERATOR SYSTEMS, VIDEO PROCESSING SYSTEMS, SPECIAL EFFECT SYSTEMS, [ AUTOMATION SYSTEMS FOR AUTOMATICALLY CONTROLLING OPERATION OF TELEVISION AND RADIO BROADCASTING APPARATUS, MACHINE CONTROL SYSTEMS FOR CONTROLLING MACHINES WHICH OPERATE TELEVISION AND RADIO BROADCASTING APPARATUS; ] STUDIO AND MASTER CONTROL ROOM SWITCHERS