Drilldown: Patents

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Patents > Inventor country : CH or SE & Number of text pages: 3

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frame (16) · airplane (14) · LTA (11) · Propulsion (11) · design (11) · navigation (10) · Construction (8) · Wings (8) · propeller (8) · None (8) · subsystem (6) · balloon (6) · Flapping (6) · stability (4) · propellers (4) · control (3) · ornithopter (3) · rudder (3) · marine (3) · aerodynamics (3)
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