A device for the checking and measurement of the journal...
A fluid propulsion system for accelerating and directionally...
A folding propeller
A front-mounted water-separation propeller
A front-mounted water-separation propeller
A marine propeller
A marine propeller, propeller system and components...
A method and an equipment for reducing the sulphur dioxide...
A method of operating a marine or stationary diesel engine
A method of rigging a stayed sailboat mast on a narrow...
A mixed-dynamic air-propeller in ship
A pivoting sailing rig
A portable sail kit
A propeller spinner for a marine propeller
A propulsion unit
A rudder
A sailing craft comprising a tilting rigid sail system
A wing sail and method of use
Acceleration system for link belt-mounted ship
Accurate tuning of marine control systems