Improvement in Scew-Propellers. Page: 1 of 3

No. 136,015,,

M. M. WILSON.
Screw-Propellers.

Patented Feb. 18,1873..

(Inentat:
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Wilson, Martin M. Improvement in Scew-Propellers., patent, February 18, 1873; [Washington D.C.]. (texashistory.unt.edu/ark:/67531/metapth166829/m1/1/ocr/: accessed November 20, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.

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