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US Patent: 351,867
Rotary Hammer
Patentee:
Patrick J. Kearns (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
72/406, 72/431

Tool Categories:
metalworking machines : forging machines : rotary hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Aug. 04, 1886
Granted: Nov. 02, 1886

Patent Pictures:
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