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Patents for Walter B. Allen
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
252,597Jan. 24, 1882F.L. Coes, J.H. CoesScrew Wrenchwrench handle components
D12,839Mar. 28, 1882V.F. PrenticeDesign for an upright drilling machinedrill presses
265,704Oct. 10, 1882T.C. RiceCarriage Wrenchaxle nut wrenches
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