Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Applicant person: None & Number of claims: 2-3

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airplane (25) · frame (17) · military (8) · design (8) · Subsystem (7) · construction (7) · LTA (5) · wing (5) · airship (5) · propeller (5) · safety (4) · biplane (4) · lift (3) · projectile (3) · triplane (3) · aerodynamics (3) · wings (3)
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