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US Patent: 618,431
Governor for Steam Engines
Patentee:
Henry C. Nichols (exact or similar names) - Hope Valley, Washington County, RI

USPTO Classifications:
73/494, 74/601

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 13, 1898
Granted: Jan. 31, 1899

Patent Pictures:
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