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AUTONOMOUS UNINHABITED UNDERWATER VEHICLE FOR CLEANING MARINE AREAS FROM FLOATING UNDERWATER OBJECTS
SELF-PROPELLED HYDROACOUSTIC BUOY-BEACON AND NAVIGATION EQUIPMENT METHOD OF SEA AREA
MOBILE HYDROACOUSTIC BUOY-BEACON AND NAVIGATION EQUIPMENT METHOD OF SEA AREA
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DEVICE RESCUE OF SUBMARINER AND METHOD FOR LIFTING IT ON SURFACE
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SELF-PROPELLED UNDERWATER VEHICLE AND LIFTING METHOD THEREOF FROM UNDER ICE