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US Patent: 3,052,900
Thread Length Control Device for Pipe Threaders
Patentee: Hans H. van der Velden (exact or similar names) - Jackson, Jackson County, MI USPTO Classifications: 192/141, 408/142, 408/148, 470/176, 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: Oct. 19, 0959 Granted: Sep. 11, 1962 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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