Drilldown: Patents

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Patents > Citations from after 1930: None & Number of text pages: 10-12 & Number of diagram pages: 4-6

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frame (8) · airplane (8) · propulsion (7) · navigation (4) · propeller (4) · Design (4) · marine (3) · LTA (3) · propellers (3) · construction (3) · hybrid (3) · fuselage (3)
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