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US Patent: 27,804
Power Hammer
Trip-Hammer
Patentee:
David Howell (exact or similar names) - Louisville, Jefferson County, KY

USPTO Classifications:
72/438, 72/444

Tool Categories:
metalworking machines : forging machines : trip and helve hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Apr. 10, 1860

Patent Pictures:
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Google Patents
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