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GB472850.pdf (file size: 947 KB, MIME type: application/pdf)

Patent GB No. 472,850, “Improvements in Propulsion Units for Aircraft” Tennant, W. J., Stockholm,Sweden, April 21, 1936.

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current22:43, 1 April 2020 (947 KB)RobertG (Talk | contribs) (Patent GB No. 472,850, “Improvements in Propulsion Units for Aircraft” Tennant, W. J., Stockholm,Sweden, April 21, 1936.)

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