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GB Patent: GB-168,634
Improvements in twist drill point grinding machines
Patentees: Herbert Hunt (exact or similar names) - Manchester, England Herbert William Hunt (exact or similar names) - Manchester, England Percy Hunt (exact or similar names) - Manchester, England USPTO Classifications: Tool Categories: metalworking machines : grinders : drill grinders metalworking machines : grinders : sharpening machines : drill sharpening machines tool making : making drills and augers Assignees: None Manufacturer: Herbert Hunt & Sons, Ltd. - Manchester, England Witnesses: Unknown	Patent Dates: Applied: May 08, 1920 Granted: Sep. 08, 1921 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for Herbert Hunt & Sons, Ltd.

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