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US Patent: 6,073
Stone Drill
Combined Spring Rock-Drilling Machine
Patentee:
Samuel Jack, II (exact or similar names) - Richmond, Lincoln County, ME

USPTO Classifications:
74/44

Tool Categories:
stoneworking : stone boring and drilling machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jan. 23, 1849

Patent Pictures:
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