Drilldown: Patents

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Patents > Year filed: 1916 & Office : AT or DE or ES & Supplementary to patent: None

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engine (8) · airplane (8) · frame (7) · subsystem (6) · LTA (6) · None (5) · instrument (5) · military (5) · ICE (5) · biplane (5) · propulsion (4) · propeller (4) · design (4) · electricity (3) · metal (3) · fuel (3) · propellers (3) · rigid (3) · construction (3) · projectile (3)
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Showing below up to 58 results in range #1 to #58.

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