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US Patent: 1,628,757
Ratchet Threading Tool
Patentee: William W. Vosper (exact or similar names) - Toledo, Lucas County, OH USPTO Classifications: 408/123 Tool Categories: metalworking tools : tap and die holders Assignees: Toledo Pipe Threading Machine Co. - Toledo, Lucas County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 28, 1925 Granted: May 17, 1927 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Toledo Pipe Threading Machine Co.

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