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Application filed by Theophil RyserfiledCriticalTheophil Ryser
Priority to PT7036679ApriorityCriticalpatent/PT70366A/pt
Publication of PT70366ApublicationCriticalpatent/PT70366A/pt
Alliage aluminium-cuivre-nickel pour la fabrication de casseroles emaillees et d'ustensiles resistant a la chaleur plaques avec un materiau deprotection non metallique