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US Patent: 1,456,805
Die head
Patentee: Victor R. Koontz (exact or similar names) - Waynesboro, PA USPTO Classifications: 408/148, 408/74 Tool Categories: industrial tools : taps and dies metalworking tools : taps and dies Assignees: Victor Tool Co. (Waynesboro) - Waynesboro, PA Manufacturer: Victor Tool Co. (Waynesboro) - Waynesboro, PA Witnesses: M. V. Henneberger Roy G. Mumma	Patent Dates: Applied: Jun. 09, 1921 Granted: May 29, 1923 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Victor Tool Co. (Waynesboro)
Description: This threading die automatically opens when a predetermined amount of thread has been cut, and is adjustable to different diameters.

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