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US Patent: 236,780
Stop-valve
Patentee: Zebulon Erastus Coffin (exact or similar names) - Boston, MA USPTO Classifications: 251/266, 251/327 Tool Categories: water distribution systems : water valves Assignees: None Manufacturer: Coffin Valve Co. - Boston, MA Witnesses: D. N. B. Coffin Edward H. Mason	Patent Dates: Applied: Jan. 30, 1880 Granted: Jan. 18, 1881 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Z. E. Coffin

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