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US Patent: 1,376,883
Engine Indicator
Patentee: Ludovic E. Hunt (exact or similar names) - Springfield, Greene County, MO USPTO Classifications: 346/4 Tool Categories: propulsion and energy : steam apparatus : steam engine indicators Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 31, 1919 Granted: May 03, 1921 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens The Story of the Steam Engine Indicator

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