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US Patent: 78,291
Drop Hammer
Patentee:
Truman P. Keeler (exact or similar names) - Worcester, Worcester County, MA

USPTO Classifications:
72/438, 72/444, 74/55, 74/567

Tool Categories:
metalworking machines : forging machines : drop hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: May 26, 1868

Patent Pictures:
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