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Priority claimed from CH6290Aexternal-prioritypatent/CH679742A5/de
Application filed by Byk Gulden Lomberg Chem FabfiledCriticalByk Gulden Lomberg Chem Fab
Priority to ZA912177ApriorityCriticalpatent/ZA912177B/en
Publication of ZA912177BpublicationCriticalpatent/ZA912177B/en