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Patents > Year filed: 1909 & Patent agent : Boult, Wade & Tennant or Royal Burnham

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LTA (4) · Design (3) · Airplane (3) · subsystem (3) · stability (3) · propulsion (3) · Propellers (3) · navigation (3) · None (2) · takeoff (2) · Rudder (2) · kites (2) · Frame (2) · landing (2) · ballonet (2) · compartments (2) · balloon (2) · Airship (2)
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