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US Patent: 11,223
Regulating the motion of steam-engines
Patentee: William C. Hibbard (exact or similar names) - Boston, MA USPTO Classifications: 73/493 Tool Categories: propulsion and energy : steam engines Assignees: None Manufacturer: Atlantic Works (Boston) - Boston, MA Witnesses: Oliver Edwards H. A. Peeler	Patent Dates: Granted: Jul. 04, 1854 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Atlantic Works (Boston)

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