Drilldown: Patents

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Patents > National tech categories : AT 77d or USPC 244/80 & Family year: 1912

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Airplane (16) · stability (9) · None (6) · design (6) · automatic stability (6) · frame (6) · Construction (6) · Propellers (5) · Aerodynamics (5) · wings (5) · Propulsion (4) · chassis (4) · wheels (4) · LTA (3) · Fuselage (3) · projectile (3) · whole (3) · Flapping (3) · airship (3) · military (3)
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Showing below up to 39 results in range #1 to #39.

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