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Patents > Patent agent : Herbert Haddan & Co. or L. Chassevent & Family year: 1900 - 1909

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control (7) · Airplane (7) · Design (7) · navigation (6) · stability (6) · None (5) · propellers (5) · propulsion (4) · LTA (4) · Subsystem (4) · frame (4) · construction (4) · balloon (3)
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Showing below up to 33 results in range #1 to #33.

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