Drilldown: Patents

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Patents > Applicant firm: None & Publication date: 1900 - 1909 & IPCs : IPC B64C3/00 or IPC B64C39/00 & Number of text pages: 4-10

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airplane (12) · wings (8) · propulsion (7) · propellers (7) · Design (7) · stability (6) · Construction (6) · lift (5) · aerodynamics (3) · whole (3) · navigation (3) · Frame (3) · hybrid (2) · parachute (2) · heavier-than-air (2) · None (2) · safety (2) · ascension (2) · sustentation (2)
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