Drilldown: Patents

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Patents > Applicant person: None & Filing date: 1915 & CPCs: None

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airplane (23) · frame (8) · propeller (7) · construction (7) · subsystem (5) · propulsion (4) · Propellers (4) · biplane (4) · design (4) · motor (4) · military (4) · None (3) · industry (3) · navigation (3) · infrastructure (3) · LTA (3) · wings (3) · engine (3) · wood (3)
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