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Patents > Year granted: 1910 & Patent agent: E. Blétry

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Airplane (12) · stability (9) · design (6) · lift (6) · Aerodynamics (6) · Subsystem (6) · Sustentation (4) · Wings (4) · automatic stability (4) · Frame (3) · control (3) · Whole (3) · propulsion (2) · Chassis (2) · Construction (2) · propellers (2) · kite (2)
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Showing below up to 28 results in range #1 to #28.

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