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US Patent: 971,941
Pipe-Threading Machine.
Patentee: William W. Vosper (exact or similar names) - Toledo, Lucas County, OH USPTO Classifications: 470/188 Tool Categories: metalworking machines : metal threading machines : pipe threading machines Assignees: Toledo Pipe Threading Machine Co. - Toledo, Lucas County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 11, 1910 Granted: Oct. 04, 1910 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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