Production year
1930
© Fonds historique / CNRS Images
Reference
19000001_0012
Mur d'isolation phonique (janvier 1930). Le mur absorbe le bruit de la machine afin de le rendre qua
Mur d'isolation phonique (janvier 1930). Le mur absorbe le bruit de la machine afin de le rendre quasi-inaudible dans la pièce mitoyenne. Office national des recherches scientifiques et industrielles et des inventions (ONRSII).
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