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 EP85870123Aexternal-prioritypatent/EP0215997B1/fr
Application filed by Wallone Prod RefractairesfiledCriticalWallone Prod Refractaires
Publication of NO871730D0publicationCriticalpatent/NO871730D0/no
Publication of NO871730LpublicationCriticalpatent/NO871730L/no
Publication of NO172041BpublicationCriticalpatent/NO172041B/no
Publication of NO172041CpublicationCriticalpatent/NO172041C/no