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Priority claimed from DE1966A0054267external-prioritypatent/DE1692360B1/de
Priority claimed from DE1967A0055824external-prioritypatent/DE1607788C3/de
Priority claimed from DE1607790Aexternal-prioritypatent/DE1607790B2/de
Application filed by Asbach & CofiledCriticalAsbach & Co
Application grantedgrantedCritical
Publication of AT280025BpublicationCriticalpatent/AT280025B/de