Drilldown: Patents

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Patents > Patent agent: None & Citations from after 1930: None & Number of figures: 12-30

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frame (4) · airplane (4) · None (3) · construction (3) · metal (3) · wings (3) · structure (2) · parachutes (2) · instrument (2) · incidence (2) · propulsion (2) · monoplane (2) · design (2)
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Showing below up to 18 results in range #1 to #18.

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