U.S. federal trademark · Serial No. 73519937 · Reg. No. 1360273
ACOUSTIC INSTRUMENTATION USED TO MEASURE DISTANCES UNDER WATER FOR SURFACE AND SUB-SURFACE NAVIGATION, NAMELY ACOUSTIC TRANSCEIVERS, UNDER-WATER TRANSDUCERS, A DIVER-HELD INSTRUMENT WHICH MEASURES THE DISTANCE AND DIRECTION OF A SUB-SEA TRANSPONDER, AN INSTRUMENT WHICH ACOUSTICALLY TRANSMITS DATA FROM A SUB-SEA OBJECT TO A SURFACE OR SUB-SURFACE RECEIVER, ACOUSTIC TRANSPONDERS AND ACOUSTIC RELEASES
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