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Patents > Year filed: 1917 & Year granted: 1921 & Applicant firm: None

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None (11) · Airplane (9) · stability (5) · control (4) · Monoplane (4) · frame (4) · design (4) · wing (3) · propeller (3) · aerial propeller (3) · wings (3) · construction (3) · automatic stability (2) · aerodynamics (2) · subsystem (2) · structure (2) · longerons (2) · propulsion (2) · propellers (2) · aileron (2)
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CPCs:
CPC B64C3/00 (8) · CPC B64C2700/6233 (6) · None (5) · CPC B64C3/18 (2) · CPC B64C2700/6212 (2) · CPC B64C17/00 (2)
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Showing below up to 39 results in range #1 to #39.

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