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Patent number:
Patent Date:
US Patent: 166,758
Rotary Balanced Valve
Patentee:
Chilton M. Farrar (
exact
or
similar
names) - Buffalo, Erie County, NY
USPTO Classifications:
137/625.22
Tool Categories:
propulsion and energy
:
steam engines
:
steam engine valves
Assignees:
None
Manufacturer:
Farrar & Trefts
- Buffalo, Erie County, NY
Witnesses:
James Sangster
William S. Grosvenor
Amos W. Sangster
Patent Dates:
Applied:
Jun. 21, 1875
Granted:
Aug. 17, 1875
Patent Pictures: [
1
|
2
]
USPTO
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Farrar & Trefts
Description:
James Sangster patent attorney.
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