Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & Inventor country: DE & IPCs : IPC B64C23/00 or IPC B64C3/00

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airplane (22) · frame (17) · construction (10) · design (9) · stability (8) · None (7) · wings (7) · biplane (6) · propeller (5) · Fuselage (4) · hybrid (4) · gyroscope (4) · propellers (4) · takeoff (4) · whole (4) · wing (3) · airfoil (3) · chassis (3)
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