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FR857940A Expired / Lapsed FR ⏱️ 0.0 years remaining

Automatic control device for electric arc furnaces

Assignee: Louis Grangette
•
Filing: 1939-07-18
•
Granted: 1940-10-05
•
Expires: 1959-07-18
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Abstract

No abstract record available.

Inventors

  • 👤 Louis Grangette

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-07 19:54
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/005

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