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Patents > Filing date: 1913 & Patent agent : Armengaud jeune or E. Blétry

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airplane (17) · frame (13) · design (9) · LTA (8) · construction (8) · aerodynamics (7) · stability (7) · propellers (7) · dirigibles (5) · automatic stability (5) · rudder (4) · motors (4) · fuselage (4) · wings (4) · subsystem (3) · rigid (3) · balloons (3) · Metal (3) · military (3) · safety (3)
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Showing below up to 33 results in range #1 to #33.

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