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All Patents in class 187/270
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
43,451Jul. 05, 1864S. Van Emon, J. Reynolds, J.T. BodleyImprovement in hoisting apparatushoists, winches, come-alongs
113,585Apr. 11, 1871T. SilverImprovement in hoisting apparatushoists, winches, come-alongs
3,039,766Jun. 19, 1962C.N. AronsonGeared elevation work positionerwork holding
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