U.S. federal trademark · Serial No. 76305060 · Reg. No. 002231264
MATERIAL TESTING AND REGULATING APPLIANCES AND INSTRUMENTS NAMELY OPTICAL FIBER TESTING AND REGULATING APPLIANCES AND INSTRUMENTS USED IN TELECOMMUNICATION, NETWORKS AND IN FIBER OPTIC NETWORKS; OPTICAL SPECTRUM ANALYZERS AND SPECTRUM ANALYZERS FOR FIBER-OPTIC NETWORKS
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