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Patents for George R. Stetson
Patents 1 - 2 of 2
First set of recordsLast set of records
195,963Oct. 09, 1877G.R. StetsonImprovement in machines for clearing twist-drillsmaking drills and augers
333,689Jan. 05, 1886G.R. StetsonMachine for Clearing Twist Drillsmaking drills and augers
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