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Patent number:
Patent Date:
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:
USPTO
(New site tip)
Google Patents
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