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GB424546.pdf (file size: 1.73 MB, MIME type: application/pdf)

Patent GB No. 424,546, “Improvements in or Relating to Fluid-Reaction Propelling Apparatus” Endres, H., Solingen, Germany, April 15, 1934.

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current22:43, 1 April 2020 (1.73 MB)RobertG (Talk | contribs) (Patent GB No. 424,546, “Improvements in or Relating to Fluid-Reaction Propelling Apparatus” Endres, H., Solingen, Germany, April 15, 1934.)

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