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All Patents in class 418/205
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
12,350Feb. 06, 1855B. HollyRotary Pumprotary pumps
237,764Feb. 15, 1881E. MeddenRotary pumprotary pumps
728,263May 19, 1903J.P. Magney, W.H. MastermanRotary Enginerotary steam engines
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