Drilldown: Patents

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Patents > Number of text pages: 3-8 & Number of claims: None & Number of figures: 9-12

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airplane (6) · frame (5) · LTA (4) · balloon (3) · captive (3) · whole (3) · stability (3) · landing (2) · takeoff (2) · heavier-than-air (2) · propulsion (2) · propeller (2) · construction (2) · lift (2) · design (2) · control (2) · metal (2) · helicopter (2)
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