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US Patent: 4,085
Boring-machine
Patentee:
James B. Coffin (exact or similar names) - Mohicanville, OH

USPTO Classifications:
408/103, 408/85

Tool Categories:
metalworking machines : drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. J. Greenough
L. Caldwell
Patent Dates:
Granted: Jun. 20, 1845

Patent Pictures:
USPTO (New site tip)
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