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Patents for E. F. Dowling
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
D19,629Jan. 28, 1890H.C. MarshDesign for a miter-boxmiter boxes
431,606Jul. 08, 1890H.E. Harbaugh, G.W. MidgleyDrilling-machinedrill presses
441,909Dec. 02, 1890L. WalkupPantographpantographs
462,397Nov. 03, 1891G. DalinDrilling-machinedrill presses
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