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Patents > Year filed: 1909 & Office : AT or BE or CA or CL or NO & National tech categories: AT 77d & Family year: 1900 - 1909

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Airplane (6) · design (4) · wings (3) · LTA (3) · Propulsion (3) · Propellers (3) · control (3) · construction (3) · gas (2) · lift (2) · wheels (2) · stability (2) · navigation (2) · Subsystem (2) · Frame (2)
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