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Patents for Charles A. Hawley
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
118,658Aug. 29, 1871W.P. WentworthImprovement in water-elevatorswater elevators
RE4,835Mar. 26, 1872W.P. WentworthImprovement in snow-shovelshousehold
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