U.S. federal trademark · Serial No. 72158364 · Reg. No. 0792192
ELECTRONIC DEVICES-NAMELY, TRANSMISSION TEST INSTRUMENTS, PULSE SIGNALING TEST SETS, SIGNAL GENERATORS, REFERENCE TONE SOURCES, AUTOMATIC TELEPHONE CENTRAL OFFICE EQUIPMENT TESTING DEVICES, AND SPECIAL NETWORKS, AS WELL AS SUPERVISORY CONTROL AND DATA TRANSMISSION SYSTEMS
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