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US Patent: 298,063
Balanced rotary valve
Patentee: John L. Bogert (exact or similar names) - Flushing, NY USPTO Classifications: 123/190.9, 137/625.22 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: None Manufacturer: John L. Bogert - Flushing, NY Witnesses: George T. Pinckney William G. Mott	Patent Dates: Applied: Sep. 17, 1883 Granted: May 06, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for John L. Bogert

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