US Patent: 6,325 - Revolving-die spike machine


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US Patent: 6,325

Revolving-die spike machine

Patentees:

Ammi M. George (exact or similar names) - Nashua, NH

Ephraim Brown (exact or similar names) - Lowell, MA

USPTO Classifications:

144/246.1, 470/135

Tool Categories:

Assignees:

Lucius C. Alexander - Nashua, NH

Nathan Richards - Medford, MA

Manufacturer:

Not known to have been produced

Witnesses:

Frederick Parker

George King

Patent Dates:
Granted:	Apr. 17, 1849

Patent Pictures:

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Vintage Machinery entry for Ephraim Brown

Description:

Of interest because co-inventor Ephraim Brown went on to invent and manufacture treadle-powered woodworking machines. Note that although the patents on either side of this one have a grant date of 1849-04-17, and this patent's drawing has the same date, the patent specification itself is dated 1849-05-18. We have no explanation for the discrepancy.