Production year
1923
© Fonds historique / CNRS Images
Reference
19000001_0421
Laboratoire de M. Dufour chez Pelletier, le 28 mars 1923
Laboratoire de M. Dufour chez Pelletier, le 28 mars 1923. Office national des recherches scientifiques et industrielles et des inventions (ONRSII). M. Dufour travailla notamment sur la fabrication d'un four à induction à haute fréquence.
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