Drilldown: Patents

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Patents > Applicant is inventor: Yes & Publication date: 1920 & Number of claims: 4-90

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Airplane (9) · frame (7) · construction (7) · None (6) · design (6) · wings (4) · stability (3) · propellers (3) · metal (2) · military (2) · biplane (2) · projectile (2) · suspension (2) · automatic stability (2)
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