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US Patent: 1,255,223
Screw-cutting die
Patentee: Albert J. Prance (exact or similar names) - Detroit, MI USPTO Classifications: 408/142, 470/77 Tool Categories: metalworking machines : drilling and boring : tapping heads and chucks Assignees: Murchey Machine & Tool Co. - Detroit, MI Manufacturer: Murchey Machine & Tool Co. - Detroit, MI Witnesses: Charles F. Schively V. L. Allen	Patent Dates: Applied: Jul. 12, 1916 Granted: Feb. 05, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Murchey Machine & Tool Co.

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