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GE82257.pdf (file size: 210 KB, MIME type: application/pdf)

19th century reaction engine Patent Nr. 82,257, Gaebert, F., German pg 27 July 1895

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current14:49, 10 June 2021 (210 KB)RobertG (Talk | contribs) (19th century reaction engine Patent Nr. 82,257, Gaebert, F., German pg 27 July 1895)

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