U.S. federal trademark · Serial No. 71471138 · Reg. No. 0441990
ELECTRIC HIGH FREQUENCY TESTING AND MEASURING APPARATUS FOR TESTING AND MEASURING HIGH FREQUENCY ELECTRICAL EQUIPMENT AND PHENOMENA-NAMELY, CHARACTERISTIC MONITORING, MEASURING AND INDICATING APPARATUS; WATTMETERS, MATCHING TRANSFORMERS, IMPEDANCE METERS, WAVE METERS, FREQUENCY STANDARDS, AND STANDARD CAVITIES
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