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US Patent: 148,670
Regulators for Governors to Steam-Engines
Patentees:
William L. B. Collins (exact or similar names) - Vacaville, Solano County, CA
Joshua Donaldson (exact or similar names) - Vacaville, Solano County, CA

USPTO Classifications:
279/58, 403/81, 74/586

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. 10, 1874
Granted: Mar. 17, 1874

Patent Pictures:
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