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Patents > Year granted: 1914 & Citations from after 1930: None & Number of figures: 10-15

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None (3) · Everard Richard Calthrop‎‎ (2) · Louis Alard (2) · Adolf Sprater (2) · Isaac Bell (2)
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Tech fields:
airplane (17) · stability (9) · design (7) · control (6) · aerodynamics (6) · propellers (6) · propulsion (6) · automatic stability (5) · construction (4) · wings (4) · wheels (4) · frame (4) · lift (3) · hydroaeroplane (3)
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None (5) · CPC B64C17/00 (5) · CPC B64C13/00 (3) · CPC F42B10/50 (2) · CPC B64F2700/6265 (2) · CPC B64C39/00 (2) · CPC B64C35/00 (2) · CPC B64C33/02 (2) · CPC B64C3/00 (2) · CPC B64C2700/6295 (2) · CPC B64C2700/6233 (2) · CPC B64B1/00 (2) · CPC B64C11/006 (2)
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