Drilldown: Patents

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Patents > Number of text pages: 9-50 & Number of figures: 20-40

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airplane (19) · frame (17) · stability (14) · design (13) · whole (8) · propulsion (8) · construction (7) · HTA (6) · propeller (6) · hybrid (6) · propellers (6) · safety (5) · LTA (5) · fuselage (5) · marine (5) · military (4) · parachute (4) · wings (4) · navigation (4)
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