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GB Patent: GB-112,879
New or improved construction of twist drill grooving and clearance grinding (or milling) machines
Patentees:
Herbert Hunt - Manchester, England
Herbert William Hunt - Manchester, England
Percy Hunt - Manchester, England

USPTO Classifications:

Tool Categories:
metalworking machines : grinders : drill grinders
tool making : making drills and augers

Assignees:
None

Manufacturer:
Herbert Hunt & Sons, Ltd. - Manchester, England

Witnesses:
Unknown

Patent Dates:
Applied: May 07, 1917
Granted: Jan. 31, 1918

Patent Pictures:
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"Vintage Machinery" entry for Herbert Hunt & Sons, Ltd.

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