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Patent number:
Patent Date:
US Patent: 1,734,977
Pressure gauge
Patentee:
Joseph W. Motherwell (
exact
or
similar
names) - Melrose, Middlesex County, MA
USPTO Classifications:
73/736
Tool Categories:
gauges
:
vacuum and pressure gauges
Assignees:
Ashton Valve Co.
- Cambridge, Middlesex County, MA
Manufacturer:
Ashton Valve Co.
- Boston, Middlesex County, MA
Witnesses:
Unknown
Patent Dates:
Applied:
May 23, 1924
Granted:
Nov. 12, 1929
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Ashton Valve Co.
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