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Priority to DE19712100912priorityCriticalpatent/DE2100912C/de
Priority claimed from DE19712100912external-prioritypatent/DE2100912C/de
Priority to US00212940Aprioritypatent/US3744504A/en
Priority to FR7200490Aprioritypatent/FR2121308A6/fr
Priority to GB87472Aprioritypatent/GB1306486A/en
Priority to JP47005159Aprioritypatent/JPS4840538A/ja
Publication of DE2100912A1publicationCriticalpatent/DE2100912A1/de
Application grantedgrantedCritical
Publication of DE2100912CpublicationCriticalpatent/DE2100912C/de