Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & National tech categories: FR 6.2 & Number of diagram pages: 1-3

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propulsion (36) · Propellers (32) · Design (14) · marine (14) · Subsystem (11) · Aerodynamics (6) · airplane (6) · Ascension (6) · Sustentation (6) · Control (5) · Navigation (5) · Construction (4) · propeller (4) · Stability (3) · Gyroscope (3)
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CPC B63H1/26 (9) · CPC B64C11/16 (8) · CPC B64C11/006 (5) · CPC B63H2001/122 (4) · CPC B64C11/04 (4) · CPC B63H1/12 (3) · CPC B63H1/20 (3) · CPC B63H1/36 (3) · CPC B64C11/00 (2) · CPC B64C11/22 (2) · CPC B64C11/18 (2) · CPC B63H1/28 (2) · CPC B63H1/265 (2) · CPC B63B3/40 (2) · CPC B64C11/24 (2)
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