Drilldown: Patents

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Patents > Office : CA or DK or US or Other & Publication date: 1900 - 1999 & IPCs : IPC B64C23/00 or IPC B64C3/56 & Citations from after 1930: None & Number of claims: 5-50000000

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Airplane (15) · design (12) · frame (11) · Construction (8) · hybrid (8) · propellers (7) · Propulsion (7) · Ascension (5) · control (5) · Landing (5) · Helicopter (5) · wings (4) · Cables (4) · chassis (4) · lift (4) · Rudder (3) · sustentation (3) · elasticity (3) · wheels (3)
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Showing below up to 21 results in range #1 to #21.

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