Drilldown: Patents

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Patents > Year granted: 1912 & National tech categories: HU V/h & Number of text pages: 2-6

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Airplane (16) · subsystem (14) · design (11) · whole (9) · Propellers (8) · construction (7) · Wings (5) · frame (5) · stability (4) · automatic stability (4) · Aerodynamics (4) · helicopter (3) · monoplane (3) · motors (2) · propulsion (2) · chassis (2) · Wheels (2)
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