Drilldown: Patents

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Patents > Office : DE or SU & National tech categories : DE 77h.5 or USPC 244/3.23 or USPC 244/30 or None & Number of claims: 2

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airplane (17) · frame (11) · construction (9) · design (7) · propulsion (6) · None (5) · control (5) · biplane (4) · subsystem (3) · propeller (3) · military (3) · aerodynamics (3) · lift (3) · wings (3)
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Showing below up to 42 results in range #1 to #42.

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