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US Patent: 7,838
Steam Cut-Off
Expansion-Gear for Horizontal Engines
Patentee:
Samuel H. Gilman - Cincinnati, OH

USPTO Classifications:
91/260, 91/271

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: Dec. 17, 1850

Patent Pictures:
USPTO pdf tiff
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