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US Patent: 1,909,347
Cylinder Working Tool
Patentee: Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH USPTO Classifications: 33/43, 33/44 Tool Categories: metalworking machines : drilling and boring : drill bits : reamers trade specific : vehicle repairer : vehicle mechanic : cylinder maintenance Assignees: Hall Manufacturing Co. - Toledo, Lucas County, OH Manufacturer: Hall Manufacturing Co. - Toledo, Lucas County, OH Witnesses: Unknown	Patent Dates: Applied: Sep. 04, 1931 Granted: May 16, 1933 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hall Manufacturing Co.

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