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GB Patent: GB-191,323,781
Improvements in and relating to die heads for screwing machines, chucks and analogous articles
Patentee: Thomas Philip Chatwin (exact or similar names) - Birmingham, England USPTO Classifications: Tool Categories: metalworking machines : metal threading machines Assignees: None Manufacturer: Thomas Chatwin Ltd. - Birmingham, England Witnesses: Unknown	Patent Dates: Applied: Oct. 21, 1913 Granted: Oct. 21, 1914 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Thomas Chatwin

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