Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from LU86784Aexternal-prioritypatent/LU86784A1/fr
Priority claimed from BE8700560Aexternal-prioritypatent/BE1000570A7/fr
Priority claimed from BE8700874Aexternal-prioritypatent/BE1000692A6/fr
Priority claimed from BE8701485Aexternal-prioritypatent/BE1001397A6/fr
Priority claimed from BE8800027Aexternal-prioritypatent/BE1001339A6/fr
Priority claimed from BE8800034Aexternal-prioritypatent/BE1001341A6/fr
Application filed by Centre Rech MetallurgiquefiledCriticalCentre Rech Metallurgique
Priority claimed from EP88870022Aexternal-prioritypatent/EP0280671B1/de
Application grantedgrantedCritical
Publication of ATE90890T1publicationCriticalpatent/ATE90890T1/de