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US Patent: 124,091
Improvement in Boring Machines
Patentee:
John Simpson (exact or similar names) - Meadville, Crawford County, PA

USPTO Classifications:
408/135, 82/132

Tool Categories:
metalworking machines : drilling and boring : vertical boring mills

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Feb. 27, 1872

Patent Pictures:
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