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Patents for George R. Young | |||||
Number | Date | Patentee | Title | Type | |
456,909 | Jul. 28, 1891 | A.C. Rice | Friction-clutch | friction clutches | |
737,326 | Aug. 25, 1903 | E.E. Euchenhofer, C.A. Bonner | Ore-concentrator | ore processing apparatus |