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Primary view of Improvement in railroad switches
Fitzsimmons, Henry
October 22, 1872
Primary view of Improvement in Churns.
Cottingham, Gideon W.
October 8, 1872
Primary view of Safety-Harness
Ellis, Ira
October 1, 1872
Primary view of Improvement In Circular-Saw Mills.
Jones, John B.
October 22, 1872
Primary view of Improvement in Cotton-Chopper
Matthews, Ebenezer T.
October 8, 1872
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