Drilldown: Patents

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Patents > Year granted: 1920 & Number of diagram pages: 2-7 & Number of figures: 6-8

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None (9) · airplane (7) · construction (6) · design (6) · frame (5) · wings (5) · control (3) · propellers (3) · HTA (2) · LTA (2) · aerial propeller (2) · safety (2) · landing gear (2) · stability (2) · aerodynamics (2) · ascension (2) · steering (2) · VTOL (2) · whole (2)
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CPC B64F2700/6226 (4) · None (3) · CPC B64C3/56 (3) · CPC B64C25/64 (2) · CPC B64C11/04 (2) · CPC B64C13/12 (2)
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