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Patents > Related to aircraft: Yes & National tech categories: DE 77h.5 & Number of text pages: 1-2

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airplane (30) · construction (20) · design (16) · frame (16) · wings (11) · biplane (9) · fuselage (7) · subsystem (4) · navigation (3) · rudder (3) · stability (3) · control (3) · Tragfläche (3) · automatic stability (3) · wing warping (3) · airfoil (3) · aerodynamics (3)
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