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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:
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