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US Patent: 1,160,426
Altitude Gage
Patentee: Coleman J. Manning (exact or similar names) - Medford, Middlesex County, MA USPTO Classifications: 116/271, 116/291, 116/296 Tool Categories: gauges : liquid gauges Assignees: American Steam Gauge & Valve Mfg. Co. - Boston, Suffolk County, MA Manufacturer: American Steam Gauge & Valve Mfg. Co. - Boston, Suffolk County, MA Witnesses: F. R. Roulstone P. W. Pezzetti E. P. Bramen	Patent Dates: Applied: Sep. 21, 1914 Granted: Nov. 16, 1915 Patent Pictures: [ 1 | 2 | 3 ] 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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