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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)
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