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Patents for C. B. Johnson
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
77,434May 05, 1868A.A. Aiken, D.E. AikenSplint Plane with Spring-loaded Throatpiecesplint planes
114,703May 09, 1871J.N. NewellImprovement in Wrenchesscrew adjust wrenches
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