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US Patent: 679,241
Locking mechanism for die-heads
Patentee: Herman W. Oster (exact or similar names) - Cleveland, OH USPTO Classifications: 408/174, 408/74, 470/75 Tool Categories: industrial tools : taps and dies metalworking tools : taps and dies Assignees: Oster Mfg. Co. - Cleveland, OH Manufacturer: Oster Mfg. Co. - Cleveland, OH Witnesses: William M. Monroe George O. Willet	Patent Dates: Applied: Jan. 13, 1900 Granted: Jul. 23, 1901 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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