U.S. federal trademark · Serial No. 72332789 · Reg. No. 0904208
AUDIO DISTRIBUTION AMPLIFIER, AUDIO MONITOR AMPLIFIER, SPECIAL EFFECTS GENERATOR, EIA SYNC GENERATOR, COLOR SYNC GENERATOR
TEST INSTRUMENTS-NAMELY, POWER SUPPLY CALIBRATOR, BAR-DOT GENERATOR, MULTIBURST GENERATOR, AND STAIR CASE GENERATOR; AND DIGITAL CLOCK
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