Drilldown: Patents

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Patents > Inventor country: RU & Assigned to: None & National tech categories : BE K or DE 77h or FR 6.4 & Family year: 1900 - 1999 & Number of claims: 1-2

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Airplane (12) · aerodynamics (6) · wings (5) · stability (5) · frame (4) · automatic stability (4) · propulsion (4) · speed (3) · ascension (3) · LTA (3) · sustentation (2) · subsystem (2) · sail (2) · propellers (2) · hybrid (2) · None (2) · control (2) · HTA (2)
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Showing below up to 26 results in range #1 to #26.

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