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Patent number:
Patent Date:
US Patent: 1,511,574
Indicating and Recording Instrument
Patentee:
Edvin H. Mortsell (
exact
or
similar
names) - Stockholm, Stockholm County, Sweden
USPTO Classifications:
346/4
,
346/49
,
73/114.18
Tool Categories:
propulsion and energy
:
internal combustion engines
:
internal combustion engine indicators
industrial tools
:
pressure indicators
industrial machines
:
industrial recording apparatus
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 24, 1920
Granted:
Oct. 14, 1924
Patent Pictures:
USPTO
(New site tip)
Google Patents
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