A manpowered boat, manpowered plane (non-flying) and a ferry that is powered by the car it carries.
Titles read: "Many Inventions."
Locations of events unknown - Germany?
M/Ss of a man in a small boat or canoe moving across the water; his hands move back and forth to work some paddles / oars coming out and over the sides of the boat. We then see a man sitting on a bicycle-type construction with a large wing across the top - a kind of manpowered aeroplane; he cycles off on the machine, but it doesn't take off.
The last invention is a small ferry that is powered by the car it carries. The car drives onto the ferry, which is flying a swastika flag, and it moves off across the water.