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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 4474179 | Method and apparatus for the high frequency coagulation of protein for surgical purposes In the arrangement according to the invention for the high frequency coagulation of protein, in particular for surgical purposes, the protein impedance is continuously determined during application of high frequency power and the differential quotient for... | 10/02/1984 |
