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Patents for William H. Barker
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
753,186Feb. 23, 1904G.E. WoodProcess For Making Hand Tools screwdriver handles
765,302Jul. 19, 1904G.E. WoodScrew Driverscrewdriver blades
793,602Jun. 27, 1905V.L. Lenard, J. MurdockProtractorprotractors
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