U.S. federal trademark · Serial No. 73086452 · Reg. No. 1069769
ELECTRIC RESISTORS AND FOR INTRUSION DETECTION EQUIPMENT-NAMELY, SYSTEMS USING TRANSDUCERS IN A PROTECTED AREA TO EMIT AN AUDIBLE TONE AND DETECT VARIATIONS IN REFLECTED TONE DUE TO MOTION IN THE AREA, INCLUDING ELECTRONIC CONTROLS, SIGNAL PROCESSING DEVICES, TONE SIGNAL GENERATORS, ALARM-CONDITION RESPONSIVE DEVICES, ALARM TESTERS AND TELEPHONIC DEVICES FOR REMOTE AUDIO MONITORING OF PROTECTED AREAS
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