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CA Patent: CA-8,143
Gas governor
Patentees: George Smith Woodruff (exact or similar names) - Grand Rapids, MI John Clay Fisks (exact or similar names) - Grand Rapids, MI USPTO Classifications: Tool Categories: propulsion and energy : steam engines : steam engine governors Assignees: None Manufacturer: George S. Woodruff - Toronto, ON Canada Witnesses: Unknown	Patent Dates: Granted: Nov. 27, 1877 Patent Pictures: CIPO Data Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Geo. S. Woodruff

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