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US Patent: 197,076
Balanced-Valve
Patentee:
Robert W. Aitken (exact or similar names) - Buffalo, Erie County, NY

USPTO Classifications:
137/625.25

Tool Categories:
propulsion and energy : steam engines : steam engine valves

Assignees:
Robert Dunbar - Buffalo, Erie County, NY
George H. Dunbar - Buffalo, Erie County, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 22, 1877
Granted: Nov. 13, 1877

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Buffalo Pitts Co.

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