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Priority claimed from BE8800129Aexternal-prioritypatent/BE1001405A6/fr
Priority claimed from BE8800130Aexternal-prioritypatent/BE1001428A6/fr
Application filed by Centre Rech MetallurgiquefiledCriticalCentre Rech Metallurgique
Priority claimed from EP19890870022external-prioritypatent/EP0327526B1/de
Application grantedgrantedCritical
Publication of ATE76796T1publicationCriticalpatent/ATE76796T1/de