Drilldown: Patents

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Patents > Year filed: 1914 & National tech categories : HU V/h or IT 8

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Airplane (28) · frame (9) · stability (7) · construction (6) · wings (6) · Wheels (6) · chassis (5) · airship (4) · automatic stability (4) · biplane (4) · design (4) · lift (3) · aerodynamics (3)
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