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Priority claimed from AT499073Aexternal-prioritypatent/AT324908B/de
Application filed by Wilhelm CsuppfiledCriticalWilhelm Csupp
Priority to AT726374ApriorityCriticalpatent/AT331695B/de
Publication of ATA726374ApublicationCriticalpatent/ATA726374A/de
Application grantedgrantedCritical
Publication of AT331695BpublicationCriticalpatent/AT331695B/de