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Priority claimed from DE19712157746external-prioritypatent/DE2157746C3/en
Priority claimed from DE19722248760external-prioritypatent/DE2248760A1/en
Priority claimed from FI723279Aexternal-prioritypatent/FI73164C/en
Application filed by Eduard KuestersfiledCriticalEduard Kuesters
Publication of FI792338ApublicationCriticalpatent/FI792338A/en
Application grantedgrantedCritical
Publication of FI70817BpublicationCriticalpatent/FI70817B/en
Publication of FI70817CpublicationCriticalpatent/FI70817C/en