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CHARLES SOURON
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CHARLES SOURON
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Méthode et appareil pour faire disparaître, par projection d'une grenaille métallique, les fines criques d'un lingot coulé d'une manière continue horizontale
Méthode et appareil pour faire disparaître, par projection d'une grenaille métallique, les fines criques d'un lingot coulé d'une manière continue horizontale