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Amgueddfa Cymru – Museum Wales
Provisional Specification. Improvements in Aeroplanes or Flying-machines. No. 307. Date of application, 6th Jan. 1909, Complete specification left, 6th Aug. 1909 - accepted, 6th Jan. 1910. Patent applied for by James Thompson of Keighley, Yorks. 3 pages with fold out diagram containing four figures.
