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Patents > Applicant person : John Hall Barnard or Robert Esnault-Pelterie & First filing: Yes

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airplane (14) · None (9) · wing warping (4) · propulsion (4) · landing (4) · frame (3) · stability (3) · lift (3) · wings (3) · construction (3) · automatic stability (3) · shock-absorbers (2) · chassis (2) · aerodynamics (2) · fuselage (2) · design (2) · sustentation (2)
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