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US Patent: 172,557
Steam Boiler
Patentee: Frank Collignon (exact or similar names) - Buffalo, NY USPTO Classifications: 122/155.3, 122/160, 122/DIG.1 Tool Categories: propulsion and energy : steam apparatus : stationary boilers Assignees: None Manufacturer: Not known to have been produced Witnesses: James Sangster William S. Grosvenor Amos W. Sangster	Patent Dates: Applied: Sep. 30, 1875 Granted: Jan. 25, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Eagle Brass Foundry

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