Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & Grant date: 1900 - 1999 & Related to aircraft: Partially

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Tech fields:
marine (9) · propulsion (8) · Wings (7) · energy (6) · aerodynamics (6) · Frame (6) · hydrodynamics (6) · None (4) · elasticity (4) · military (4) · projectile (4) · fun (2) · safety (2) · engine (2) · blades (2) · toy (2)
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National tech categories:
None (11) · USPC 244/3.23 (3) · USPC 244/3.3 (2) · FR 5.8 (2) · USPC 416/128 (2)
CPCs:
None (7) · CPC B64C11/006 (3) · CPC A63H27/00 (2) · CPC F03D1/025 (2) · CPC B64C11/48 (2) · CPC B64C25/60 (2) · CPC F16F9/06 (2) · CPC A63H29/18 (2) · CPC Y10T74/13 (2)
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