Drilldown: Patents

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Patents > Office : CH or DK & Applicant firm: None & Number of figures: 9-30

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design (13) · stability (13) · Frame (10) · propulsion (9) · LTA (8) · wings (8) · navigation (7) · subsystem (6) · airplane (6) · balloon (5) · propeller (4) · safety (4) · whole (4)
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