Drilldown: Patents

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Patents > National tech categories : DE 77h.5 or USPC 116/280 & Number of claims: 2

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airplane (18) · frame (9) · construction (8) · design (7) · None (6) · control (5) · propulsion (4) · wings (4) · Tragfläche (3) · military (3) · subsystem (3) · stability (3) · airfoil (3) · propeller (3) · biplane (3) · Aerodynamics (3)
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