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US Patent: 35,309
Power Hammer
Patentee:
William D. Grimshaw (exact or similar names) - Newark, Essex County, NJ

USPTO Classifications:
72/443, 72/453.18

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: May 20, 1862

Patent Pictures:
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