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Priority claimed from DE19772718064external-prioritypatent/DE2718064A1/de
Application filed by Ruoff Schaefer RudolffiledCriticalRuoff Schaefer Rudolf
Priority to AT274879ApriorityCriticalpatent/AT361262B/de
Publication of ATA274879ApublicationCriticalpatent/ATA274879A/de
Application grantedgrantedCritical
Publication of AT361262BpublicationCriticalpatent/AT361262B/de