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US Patent: 31,335
Steam Engine Valve Gear
Patentee:
William Smith (exact or similar names) - Philadelphia, PA

USPTO Classifications:
91/262

Tool Categories:
propulsion and energy : steam engines : steam engine valve gear

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Feb. 05, 1861

Patent Pictures:
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