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All Patents in class 33/23.01
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
363,657May 24, 1887J. MacKenzieCountour Scribe for Railroad Wheelsscribes
2,703,455Mar. 08, 1955E.T. GreenAutoradial Engraving Devicemetal engraving machines
3,015,976Jan. 09, 1962C.H. JohnsonCenter Drive Machine Toolmetal lathes
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