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STUDIEN und VERWERTUNG GmbH
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STUDIEN und VERWERTUNG GmbH
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Application filed by STUDIEN und VERWERTUNG GmbHfiledCriticalSTUDIEN und VERWERTUNG GmbH
Application grantedgrantedCritical
Publication of FR764338ApublicationCriticalpatent/FR764338A/fr
Perfectionnements à la préparation d'une matière pour la production de moules à utiliser dans la fabrication d'articles de poterie et analogues