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Patents > Office: DE & National tech categories : DE 62c.1 or DE 77h.5 & First filing: No

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airplane (30) · frame (19) · construction (18) · design (15) · wings (13) · Control (13) · stability (7) · biplane (7) · rudder (6) · Tragfläche (5) · Navigation (5) · None (5) · airfoil (5) · lift (4) · fuselage (4) · automatic stability (3) · subsystem (3) · aerodynamics (3)
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Showing below up to 63 results in range #1 to #63.

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