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FR857516A Expired / Lapsed FR ⏱️ 0.0 years remaining

Transformer device for converting three-phase current into current with a higher number of phases

Assignee: BROWN
•
Filing: 1939-07-08
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Granted: 1940-09-17
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Expires: 1959-07-08
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-29 22:04
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/068

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