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Patent number:
Patent Date:
US Patent: 434,531
Induction Discharge Protector for Welding Appatatus
Patentee:
Elihu Thomson (
exact
or
similar
names) - Lynn, Essex County, MA
USPTO Classifications:
313/152
,
33/700
,
361/52
Tool Categories:
specialty machines
:
welding apparatus
Assignees:
Thomson Electric Welding Co.
- Lynn, Essex County, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Aug. 08, 1889
Granted:
Aug. 19, 1890
Patent Pictures:
USPTO
(New site tip)
Google Patents
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