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US Patent: 69,232
Rotary Steam Valve
Patentee:
Joseph McConnell (exact or similar names) - Iowa City, Johnson County, IA

USPTO Classifications:
123/81B, 91/257

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Sep. 24, 1867

Patent Pictures:
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