Drilldown: Patents

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Patents > Full specification filed date: 1900 - 1909 & Publication date: 1900 - 1999 & Citations from after 1930: None & Number of text pages: 3-50000000

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propellers (8) · Design (6) · airplane (6) · subsystem (5) · propulsion (5) · aerodynamics (4) · takeoff (4) · navigation (4) · LTA (4) · Frame (4) · landing (4) · control (3) · Stability (3) · Ascension (3) · hybrid (3)
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