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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 |
| 6164975 | Interactive instructional system using adaptive cognitive profiling An interactive instructional system realizing an eventstream based educational methodology and enabling an interactive, adaptive learning environment. Continuously tracking and evaluating learner interaction, the system creates and updates a profile of th... | 12/26/2000 |
