Drilldown: Patents

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Patents > Publication date: 1910 - 1919 & National tech categories: FR 6.2 & Number of claims: 1-4

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Propulsion (31) · propellers (31) · design (17) · Marine (12) · Subsystem (11) · Aerodynamics (9) · control (7) · construction (5) · airplane (5) · ascension (5) · propeller (4) · Navigation (4) · None (3) · sustentation (3)
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CPC B63H1/26 (9) · CPC B64C11/16 (7) · CPC B64C11/006 (6) · CPC B64C11/04 (4) · CPC B63H1/20 (4) · CPC B63H2001/122 (4) · CPC B63H1/12 (3) · CPC B63H1/36 (2) · CPC B63B3/40 (2) · CPC B64B1/00 (2) · CPC B64C11/18 (2) · CPC B63H1/28 (2) · CPC B63H1/265 (2) · CPC B64C11/22 (2) · CPC B64C11/00 (2) · CPC B63H3/00 (2)
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