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US Patent: 15,219
Tapping Gas Fittings
Patentee:
Henry A. Chapin - Springfield, Hampden County, MA

USPTO Classifications:
408/104

Tool Categories:
metalworking machines : drilling and boring : tapping machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jul. 01, 1856

Patent Pictures:
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