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US Patent: 533,812
Steam Engine Indicator
Patentee: William Houghtaling (exact or similar names) - Bridgeport, Fairfield County, CT USPTO Classifications: 346/5 Tool Categories: propulsion and energy : steam apparatus : steam engine indicators Assignees: Ashcroft Mfg. Co. - Bridgeport, Fairfield County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 03, 1893 Granted: Feb. 05, 1895 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Ashcroft Mfg. Co.
Description: Application renewed, 20 Jul 1894.

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