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Priority claimed from DE3000171Aexternal-prioritypatent/DE3000171C2/en
Priority claimed from DE3033725Aexternal-prioritypatent/DE3033725C2/en
Application filed by Vereinigte Aluminium-Werke AktiengesellschaftfiledCriticalVereinigte Aluminium-Werke Aktiengesellschaft
Priority claimed from EP80710024Aexternal-prioritypatent/EP0032355B1/en
Application grantedgrantedCritical
Publication of ATE7405T1publicationCriticalpatent/ATE7405T1/en