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FR539175A Expired / Lapsed FR ⏱️ 0.0 years remaining

Economical method of constructing collectors for electric dynamo machines

Assignee: Francois Mareschal
•
Filing: 1921-08-09
•
Granted: 1922-06-22
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Expires: 1941-08-09
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Abstract

No abstract record available.

Inventors

  • 👤 Francois Mareschal

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-23 06:52
CPC Classifications
H; H02; H02K; H02K13/00; H02K13/006

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