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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 |
| 6712263 | Mechanical numeral wheel counter that can output switch signals and a method of reading the switch signals A mechanical numeral wheel counter comprising several numeral wheels and switch sensors set alternatively around the numeral wheels. The circumferences of the numeral wheels are divided into equal spaces and a sensing material is placed on each of the spaces. As the... | 03/30/2004 |
