Drilldown: Patents

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Patents > First filing: None & Number of text pages: 4-9 & Number of figures: 11-100

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frame (13) · airplane (13) · propulsion (10) · stability (9) · whole (8) · LTA (7) · marine (7) · propeller (7) · navigation (6) · design (6) · hybrid (5) · landing (5) · heavier-than-air (5) · safety (5) · balloon (5) · Subsystem (4) · parachute (4)
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