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Patents > Grant date: 1921 & First filing: Yes & Number of text pages: 1-2

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airplane (13) · construction (9) · None (6) · frame (5) · design (5) · control (5) · wings (5) · aerodynamics (5) · stability (4) · monoplane (3) · Fuselage (3) · structure (3) · propeller (3)
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CPCs:
CPC B64C3/00 (7) · CPC B64C23/005 (3) · CPC B64C2700/6233 (3) · None (2) · CPC B64C2001/0063 (2) · CPC B64C17/00 (2) · CPC B64C25/62 (2) · CPC B64C27/04 (2) · CPC B64C11/24 (2) · CPC B64C9/02 (2) · CPC B64C2700/6235 (2) · CPC B64C2700/6274 (2)
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