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US Patent: 855,151
Power Hammer
Patentees:
Lewis Wilson (exact or similar names) - Oakland, Alameda County, CA
Francis I. Matthews (exact or similar names) - Oakland, Alameda County, CA

USPTO Classifications:
72/433, 72/446, 72/456

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jan. 25, 1905
Granted: May 28, 1907

Patent Pictures:
USPTO (New site tip)
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