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US Patent: 172,116
Engine-Governor
Patentees: Gordon W. Hall (exact or similar names) - Havana, Schuyley County, NY Albert O. Whittemore (exact or similar names) - Havana, Schuyley County, NY USPTO Classifications: 73/493, 73/532, 73/535, 91/259, 91/331, 91/333 Tool Categories: propulsion and energy : steam engines : steam engine governors Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 17, 1875 Granted: Jan. 11, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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