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Patents > Year filed: 1919 & Year granted: 1920 - 1929

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Inventors:
None (4) · Deutsche Flugzeug Werke (2) · Walter George Tarrant‎ (2) · Seth Hart (2) · Robert Ingersoll Eustis (2) · Marcel Leyat (2) · William Davey Oddy (2) · Alexander Albert Holle (2)
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Tech fields:
airplane (15) · subsystem (8) · propellers (7) · propeller (6) · frame (6) · Wings (5) · Aerodynamics (4) · None (3) · lift (3) · aerial propeller (3) · propulsion (3) · marine (3) · design (3)
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CPCs:
None (10) · CPC B64C11/04 (2) · CPC B64D27/04 (2) · CPC B64C3/00 (2) · CPC B64C11/48 (2) · CPC B64C11/18 (2) · CPC B64C2001/0063 (2) · CPC B63H1/26 (2)
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