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Patent number:
Patent Date:
US Patent: 184,686
Machines for Tapping Pipes Under Pressure
Patentee:
John Miller (
exact
or
similar
names) - Cambridgeport, Middlesex County, MA
USPTO Classifications:
137/318
,
408/137
,
408/97
Tool Categories:
trade specific
:
plumber
Assignees:
None
Manufacturer:
Walworth Mfg. Co.
- Cambridgeport, Middlesex County, MA
Witnesses:
F. P. Hale
F. C. Hale
George Gray
Patent Dates:
Applied:
Apr. 24, 1876
Granted:
Nov. 21, 1876
Patent Pictures: [
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