Drilldown: Patents

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Patents > Year granted: 1920 & Number of text pages: 4-11 & Number of figures: 5-14

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Airplane (12) · None (7) · frame (4) · design (4) · chassis (3) · stability (3) · propulsion (3) · navigation (3) · motors (3) · construction (3) · wings (3) · biplane (2) · aerial propellers (2) · propellers (2) · military (2) · hélice‎ (2) · control (2) · LTA (2)
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None (6) · CPC B64C17/00 (4) · CPC B64C13/12 (3) · CPC B64C33/02 (2) · CPC B64C3/56 (2)
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