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Priority to BE594563DpriorityCriticalpatent/BE594563A/fr
Application filed by Chemie Linz AgfiledCriticalChemie Linz Ag
Priority to AT768760Aprioritypatent/AT221110B/en
Priority to DE1417707Aprioritypatent/DE1417707C3/en
Priority to FR875726Aprioritypatent/FR80711E/en
Application grantedgrantedCritical
Publication of AT221110BpublicationCriticalpatent/AT221110B/en