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US Patent: D45,941
Boiler Check Casting
Patentee: Leopold Kassander (exact or similar names) - New York, NY USPTO Classifications: D23/322 Tool Categories: propulsion and energy : steam engines : steam check valves Assignees: Nathan Mfg. Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 08, 1914 Granted: Jun. 16, 1914 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Nathan Mfg. Co.

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