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Patents for John B. Ball
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,412,888Apr. 18, 1922L. NovakScraping Toolscraper planes
2,109,057Feb. 22, 1938J.B. Ball, F.W. BillkerCutting machineprinter
2,165,953Jul. 11, 1939J.B. Ball, F.W. BillkerCutting machineprinter
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