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US Patent: 412,809
Power-hammer
Patentee:
Charles A. Vaughn (exact or similar names) - Newark, NJ

USPTO Classifications:
72/431

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. L. Sherman
Oliver Drake
Patent Dates:
Applied: Nov. 14, 1888
Granted: Oct. 15, 1889

Patent Pictures:
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