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Patents > Supplementary to patent: None & National tech categories: CH 129b & Number of diagram pages: 1

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airplane (11) · stability (7) · design (6) · frame (5) · whole (5) · subsystem (5) · propeller (4) · heavier-than-air (3) · propulsion (3) · automatic stability (3) · Tragfläche (3) · HTA (3) · lift (2) · hybrid (2) · propellers (2) · flapping (2) · elasticity (2) · construction (2) · cables (2) · airfoil (2)
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