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US Patent: 172,116
Engine-Governor
Patentees:
Gordon W. Hall (exact or similar names) - Havana, Schuyley County, NY
Albert O. Whittemore (exact or similar names) - Havana, Schuyley County, NY

USPTO Classifications:
73/493, 73/532, 73/535, 91/259, 91/331, 91/333

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 17, 1875
Granted: Jan. 11, 1876

Patent Pictures:
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