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Patent number:
Patent Date:
US Patent: 2,137,972
Illuminated gauge
Patentees:
Harry S. Baker (
exact
or
similar
names) - Arlington, Middlesex County, MA
Joseph W. Motherwell (
exact
or
similar
names) - Melrose, Middlesex County, MA
USPTO Classifications:
220/304
,
362/23.01
,
362/23.17
Tool Categories:
gauges
:
gauge illuminating apparatus
Assignees:
Ashton Valve Co.
- Cambridge, Middlesex County, MA
Manufacturer:
Ashton Valve Co.
- Boston, Middlesex County, MA
Witnesses:
Unknown
Patent Dates:
Applied:
May 07, 1936
Granted:
Nov. 22, 1938
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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