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US Patent: 37,384
Boring and Squaring Off Cylinders
Patentee:
John C. Chapman (exact or similar names) - Charlestown, Middlesex County, MA

USPTO Classifications:
408/137, 82/117

Tool Categories:
metalworking machines : metalworking machine mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jan. 13, 1863

Patent Pictures:
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