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Patents Granted on 1890-09-23
Patents 1 - 7 of 7
First set of recordsLast set of records
436,842Sep. 23, 1890B.E. SawyerParallel Rulertry squares
436,931Sep. 23, 1890D. BestTraction Enginesteam traction engines
436,936Sep. 23, 1890J.W. EisenhuthExplosive Engine
437,047Sep. 23, 1890J.N. SargentVisebench vises
437,068Sep. 23, 1890L.E. WhitonSpeed-changing mechanism for lathesmetal lathes
437,102Sep. 23, 1890C.W. DixonWrenchquick adjust wrenches
437,157Sep. 23, 1890H.W. HoneymanTapping attachment for drill presstapping machines
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