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All Patents of Type: hoists and winches
Patents 1 - 3 of 3
First set of recordsLast set of records
64,915May 21, 1867H.F. ShawImprovement in Hoisting Gearhoists and winches
448,868Mar. 24, 1891E.N. WickesWinding-drumhoists and winches
910,798Jan. 26, 1909W.O. DuntleyElectric hoisthoists and winches
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