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US Patent: 2,778,037
Screw Cutting Machine for Progressively Cutting Single or Multiple Pitch Thread
Patentee: Pierre Edouard Renoux (exact or similar names) - Argeneuil, France USPTO Classifications: 470/80, 82/110 Tool Categories: metalworking machines : metal lathes : screwcutting lathes Assignees: Societe Anonyme dite: Cri-Dan - Paris, France Manufacturer: Gisholt Machine Co. - Madison, Dane County, WI Witnesses: Unknown	Patent Dates: Applied: Jul. 23, 1952 Granted: Jan. 22, 1957 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Gisholt Machine Co.

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