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| Number | Title | Issue Date |
| 4613098 | Devices which may be borne in air and on devices applicable therein A rotor having airfoil section shaped blades is set into a fluid stream. Over a connection or transmission means a propeller is connected to the rotor. The fluid stream whereinto the rotor is set gives airflow energy to the rotor and revolves the rotor. T... | 09/23/1986 |
| 4387866 | Fluid motor driven propeller-aircraft for vertical take off and landing with a multipurpose pipe structure An aircraft has a pair of tiltable wings for vertical and horizontal flight with propeller-pairs which are driven and synchronized by a fluid transmission between the power plant and the propellers. The interior structure which keeps most of the component... | 06/14/1983 |
| 3995793 | Roto-wing jet airplane A jet aircraft is equipped with powered helicopter type rotor blades and control mechanisms whereby it can take off and land vertically, yet in horizontal flight can operate at speeds and altitudes typical of jet aircraft. The rotor blades are foldably re... | 12/07/1976 |
| 3934843 | Free wing for convertible aircraft structure A convertible airplane having an outboard engine supported at each side of the airplane fuselage on a spar that is angularly adjusted through 90° from a horizontal to a vertical position for operating propellers both for a helicopter and for an airplane.... | 01/27/1976 |