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Patents for W. H. Millen
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
46,823Mar. 14, 1865M.J. Rice, W.H. MillenImproved journal-boxindustrial machine pulleys and belt drive mechanisms
49,591Aug. 22, 1865M.J. Rice, W.H. MillenImproved journal-boxindustrial machine pulleys and belt drive mechanisms
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