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Patents Granted on 1939-08-29
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,171,208Aug. 29, 1939F.S. Haas, A.H. DallHigh Speed Spindle Constructiongrinding machines
2,171,271Aug. 29, 1939A.M. JohnsonHoning machinehoning machines
2,171,417Aug. 29, 1939E.M. McGovern, P. SchrickCrankshaft grinding toolautomotive tools
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