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Priority claimed from DE3028401Aexternal-prioritypatent/DE3028401C2/de
Priority claimed from DE3028400Aexternal-prioritypatent/DE3028400C2/de
Application filed by Wagener Schwelm Gmbh & CofiledCriticalWagener Schwelm Gmbh & Co
Publication of HU185300BpublicationCriticalpatent/HU185300B/hu