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Patents > Year granted: 1912 & Patent agent : Armengaud jeune or Haseltine, Lake & Co. & First filing: Yes

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airplane (7) · design (6) · stability (5) · construction (5) · frame (4) · automatic stability (4) · wings (4) · fuselage (3) · landing (3) · chassis (3) · control (3) · springs (2) · Propellers (2) · aerodynamics (2) · LTA (2) · balloon (2) · airship (2)
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