Drilldown: Patents

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Patents > Granted: Yes & National tech categories : DE 77 or FR 6.2 or FR 6.4 or USPC 244/119 & Family year: 1911 & Number of text pages: 3 & Number of figures: 5-6

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airplane (14) · Design (9) · stability (6) · None (5) · construction (5) · chassis (4) · propulsion (4) · frame (4) · equilibrium (4) · Sustentation (3) · propellers (3) · LTA (3) · lift (3) · landing (3) · wings (3)
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