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Priority claimed from DE2244391Aexternal-prioritypatent/DE2244391B2/de
Application filed by Vakuum Vulk Holding LimitedfiledCriticalVakuum Vulk Holding Limited
Priority to AT220775ApriorityCriticalpatent/AT337025B/de
Publication of ATA220775ApublicationCriticalpatent/ATA220775A/de
Application grantedgrantedCritical
Publication of AT337025BpublicationCriticalpatent/AT337025B/de