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DE949988C
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High-performance aircraft with floats that can be folded into the fuselage or folded onto the fuselage
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DE650648C
|
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Jump starting part screwdriver
|
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DE605049C
|
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helicopter
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DE664633C
|
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Screwdriver with two systems of revolving blades
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DE604956C
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Helicopters with one or more rotors
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DE613538C
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Airplane with retractable props
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DE597097C
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Revolving wing system with reaction drive for aircraft
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DE650744C
|
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Screwdriver
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DE592838C
|
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Helicopter with propulsion of the rotor by recoil
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DE601412C
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Orbiting wing system for aircraft
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