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Priority claimed from DE19883833945external-prioritypatent/DE3833945C2/en
Priority claimed from DE19893909857external-prioritypatent/DE3909857A1/en
Priority claimed from DE19893916958external-prioritypatent/DE3916958C1/de
Application filed by Alcoa Gmbh VerpackwerkefiledCriticalAlcoa Gmbh Verpackwerke
Priority claimed from EP89117865Aexternal-prioritypatent/EP0364775B1/en
Application grantedgrantedCritical
Publication of ATE71906T1publicationCriticalpatent/ATE71906T1/en