U.S. federal trademark · Serial No. 75824955 · Reg. No. 2508680
HYDRO-ACOUSTIC POSITIONING AND TELEMETRY INSTRUMENTS HYDRO-ACOUSTIC POSITION REFERENCE EQUIPMENT FOR USE IN THE MARINE-OCEANOGRAPHIC INDUSTRY; MARINE SEISMIC STEAMER POSITIONING EQUIPMENT AND OCEANOGRAPHIC INSTRUMENTS, NAMELY, TELEMETERING TIDEGAUGES AND ACOUSTIC RELEASES
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