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Patent number:
Patent Date:
US Patent: 21,399
Steam-Engine Valve-Gear
Cut-Off for Steam-Engines
Patentee:
Jacob Widmer (
exact
or
similar
names) - New Haven, CT
USPTO Classifications:
109/31
,
74/568R
Tool Categories:
propulsion and energy
:
steam engines
:
steam engine valve gear
Assignees:
Jacob Widmer
- New Haven, CT
Howard Gilbert
- New Haven, CT
Manufacturer:
Not known to have been produced
Witnesses:
Howard Gilbert
R. Fitzgerald
Patent Dates:
Granted:
Aug. 31, 1858
Patent Pictures:
USPTO
(New site tip)
Google Patents
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