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US Patent: 1,516,102
Balanced Valve
Patentee: Leopold Kassander (exact or similar names) - New York, NY USPTO Classifications: 137/630.11 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: Nathan Mfg. Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 05, 1921 Granted: Nov. 18, 1924 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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