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Patents for Christian Black
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
516,182Mar. 13, 1894C. BlackWrench
CA-46,266Jun. 06, 1894C. BlackWrench
546,295Sep. 17, 1895C. BlackImprovements in Sliding-Jaw Wrenches
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