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Priority claimed from DE2164851Aexternal-prioritypatent/DE2164851A1/en
Application filed by Berg A Van Den, Henkel & Cie GmbhfiledCriticalBerg A Van Den
Priority to ZA729087ApriorityCriticalpatent/ZA729087B/en
Publication of ZA729087BpublicationCriticalpatent/ZA729087B/en