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Patents > Year filed: 1909 & Year granted: 1910 - 1919 & Office : BE or NL or RU or Other & Inventor country : AT or MX or US & Related to aircraft : 1 or frame & Number of diagram pages: 3-4

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airplane (18) · frame (17) · propeller (16) · rudder (14) · stability (12) · None (10) · propulsion (9) · navigation (9) · takeoff (7) · wheels (6) · car (6) · propellers (4) · helicopter (4) · landing (4) · cargo (4) · LTA (3) · safety (3) · HTA (3) · hybrid (3)
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