Drilldown: Patents

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Patents > Year granted: 1919 & Applicant person: None & National tech categories : AT 77d or DE 77h.5 or USPC 244/90R

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airplane (23) · frame (9) · biplane (7) · wings (7) · military (5) · design (5) · LTA (4) · cooling (3) · construction (3) · aerodynamics (3) · Tragfläche (3) · subsystem (3) · radiator (3) · airship (3)
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Showing below up to 34 results in range #1 to #34.

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