Drilldown: Patents

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Patents > Publication date: 1919 & IPCs: None & First filing: Yes

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airplane (13) · frame (7) · design (5) · propellers (5) · construction (5) · Biplane (3) · engine (3) · Wood (2) · motor (2) · aerodynamics (2) · safety (2) · fuselage (2) · military (2) · cylinder (2) · Tragfläche (2) · Wings (2)
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Showing below up to 24 results in range #1 to #24.

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