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US Patent: 677,674
Recording Gage of Steam Pressure on Boilers
Patentee: Coleman J. Manning (exact or similar names) - Medford, Middlesex County, MA USPTO Classifications: 346/123, 346/17, 346/72, 73/712, 73/736 Tool Categories: propulsion and energy : steam apparatus : stationary boilers : steam pressure gauges gauges : vacuum and pressure gauges industrial tools : pressure indicators industrial machines : industrial recording apparatus Assignees: American Steam Gauge Co. - Boston, Suffolk County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 02, 1901 Granted: Jul. 02, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for American Steam Gauge Co.

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