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Patents > Office: US & Grant date: 1921 & Number of text pages: 2-3

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airplane (9) · None (6) · construction (6) · frame (5) · propeller (5) · aerial propeller (3) · landing (3) · fuselage (3) · stability (2) · piloting (2) · navigation (2) · longerons (2) · instrument (2) · wing (2) · aerodynamics (2) · biplane (2)
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CPC B64C3/00 (4) · CPC B64C1/00 (3) · CPC B64C2700/6235 (2) · CPC B64C35/00 (2) · CPC B64C2700/6233 (2) · CPC Y10T29/49334 (2)
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