Manually-Operated Coal-Mining Machine. Page: 2 of 8
4 sheets, 4 p. : ill. ; 23 cm.View a full description of this patent.
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E. JACKSON.
MANUALLY OPERATED COAL MINING MACHINE.
APPLICATION FILED APR. 4 1916.1,309,477.
O T)Patented July 8,1919.
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Jackson, Ed. Manually-Operated Coal-Mining Machine., patent, July 8, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257226/m1/2/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.