U.S. federal trademark · Serial No. 72406378 · Reg. No. 0972829
FUNCTION GENERATORS, PHASE METERS, MULTIMETERS (CONSTITUTING A COMBINATION OF VOLTMETERS, OHMMETERS AND FREQUENCY METERS), SWEEP GENERATORS, ATTENUATORS, DETECTORS AND AUDIO RESPONSE SYSTEMS FOR USE WITH COMPUTERS-NAMELY, TOUCH TONE TRANSMITTERS, RECEIVERS, CONCENTRATORS AND LOCAL AND REMOTE AUDIO RESPONSE SYSTEMS FOR USE WITH COMPUTERS TO TRANSMIT INFORMATION THROUGH TELEPHONE LINES, TRANSMISSION TEST SYSTEM FOR GENERATING AND DISPLAYING SIGNAL RESPONSE IN COMMUNICATIONS LINES
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