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US Patent: 188,154
Improvement in gas and water regulators
Patentees: Benjamin J. Thurston (exact or similar names) - Cincinnati, OH William D. Leavitt (exact or similar names) - Cincinnati, OH USPTO Classifications: 116/277, 137/556.3, 251/322 Tool Categories: Assignees: James W. Hadlock - Cincinnati, OH Benjamin J. Thurston - Cincinnati, OH William D. Leavitt - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: A. J. Tullis James H. Layman	Patent Dates: Applied: Jan. 19, 1877 Granted: Mar. 06, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Lee & Leavitt

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