Amphibious drive system for a boat
Amphibious vehicle
Boat impeller wheel for minimizing the splashes therefrom
Built-up watercraft
Cycloidal propeller
Device for controlling a cycloid propeller for watercraft
Device, such as a propeller, for ships which is independent of t
Flexible paddle wheel structure
High-speed paddle wheel catamaran
Hydrofoil vessel
Marine radial surface drive
Outboard boat propulsion installation
Paddle wheel boat
Paddle wheel for a ship
Paddle wheel kit for pontoon boat
Paddle wheel propulsion device kit
Paddle wheel propulsion system and improved paddle used...
Paddlewheel vessel thruster
Propelling system suitable for use on watercraft
Propulsion apparatus for marine vessels