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Priority claimed from DE2239012Aexternal-prioritypatent/DE2239012A1/de
Application filed by Knoll AgfiledCriticalKnoll Ag
Priority to AT258075ApriorityCriticalpatent/AT330201B/de
Publication of ATA258075ApublicationCriticalpatent/ATA258075A/de
Application grantedgrantedCritical
Publication of AT330201BpublicationCriticalpatent/AT330201B/de