Fresh air snorkel for divers
Fresh water flushing system
Fresh water supply and waste water retention system
Friction-reducing ship and method for reducing skin friction
Friction-reducing ship with compressed air generation...
Front driven jet a boat
Fso loading/mooring
Fuel injection apparatus for marine engine
Fuel tank fixing structure of small size boat
Fuel tank for personal watercraft
Full face mask with face seal and removable adaptors...
Full span shipboard fueling system for aircraft
Functional unit installation in a warship
Furling boom
Furling foil for sailing vessel