Adjustable lever for a mast or the like
Adjustable mast step
Adjustable personal flotation device
Adjustable position steering
Adjustable propeller for marine vessel drive
Adjustable rowing shoe device
Adjustable steering column
Adjustable windshield and canopy for a boat
Adjuster system for sailboard booms
Advanced marine vehicles for operation at high speeds in or...
Advanced steering and propulsion system for ships
Advantageous use of battery mass in electric watercraft
Aerofoilboat
Aide au nageur
Air aspiration prevention pan
Air bag apparatus
Air bags for semiclosed-circuit underwater breathing apparatus
Air bubble assist for working ships
Air conditioning apparatus for a boat
Air cooling apparatus