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US Patent: 538,042
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. 31, 1894 Granted: Apr. 23, 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: Patented in England, 20 Feb 1894, #3627.

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