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US Patent: 403,455
Valve Gear
Patentee: Edgar M. Birdsall (exact or similar names) - Buffalo, Erie County, NY USPTO Classifications: 74/571.11 Tool Categories: propulsion and energy : steam apparatus : steam traction engines : traction engine valve gear Assignees: Mary Birdsall - Buffalo, Erie County, NY Manufacturer: Not known to have been produced Witnesses: John J. Bonner C. D. Howe Charles J. Buchheit Theodore L. Popp	Patent Dates: Applied: Dec. 29, 1888 Granted: May 14, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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