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US Patent: 977,540
Thread-cutting mechanism
Patentee: Herman W. Oster (exact or similar names) - Cleveland, OH USPTO Classifications: 409/69, 409/74 Tool Categories: metalworking machines : metal threading machines : pipe threading machines Assignees: Oster Mfg. Co. - Cleveland, OH Manufacturer: Oster Mfg. Co. - Cleveland, OH Witnesses: E. L. Thurston R. B. Tewksbury	Patent Dates: Applied: Apr. 18, 1908 Granted: Dec. 06, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Oster Mfg. Co.

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