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Priority claimed from DE2061027Aexternal-prioritypatent/DE2061027C3/de
Application filed by Wilhelm HeglerfiledCriticalWilhelm Hegler
Priority to AT875373ApriorityCriticalpatent/AT337448B/de
Publication of ATA875373ApublicationCriticalpatent/ATA875373A/de
Application grantedgrantedCritical
Publication of AT337448BpublicationCriticalpatent/AT337448B/de