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Patent number:
Patent Date:
US Patent: 1,274,921
Pressure Gage
Patentee:
Francis J. Manning (
exact
or
similar
names) - Medford, Middlesex County, MA
USPTO Classifications:
73/740
Tool Categories:
gauges
:
vacuum and pressure gauges
Assignees:
American Steam Gauge & Valve Mfg. Co.
- Boston, Suffolk County, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Aug. 27, 1915
Granted:
Aug. 06, 1918
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for American Steam Gauge Co.
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