Drilldown: Patents

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Patents > Assigned to: None & National tech categories : DE 77h.5 or FR 6.3 or USPC 244/9 & IPCs: IPC B64C39/00

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propulsion (7) · design (6) · airplane (6) · navigation (5) · safety (5) · parachute (4) · landing (3) · airship (3) · frame (3) · hybrid (2) · fuselage (2) · Tragfläche (2) · construction (2) · control (2) · stability (2) · propellers (2) · monoplane (2) · ascension (2) · wings (2) · heavier-than-air (2)
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Showing below up to 22 results in range #1 to #22.

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