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GB Patent: GB-186,400,206
Atmospheric Hammer
Patentee:
William Dakin Grimshaw - Mitcham, Surrey County, England

USPTO Classifications:

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Thomas Whitfield and Co. - Birmingham, England

Witnesses:
Unknown

Patent Dates:
Granted: Jan. 25, 1864

Patent Pictures:
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"Vintage Machinery" entry for Thomas Whitfield & Co.
Description:
Also, see patent #45,896.

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