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Application filed by Ruhnke SiegfriedfiledCriticalRuhnke Siegfried
Priority to AT657068ApriorityCriticalpatent/AT327012B/de
Publication of ATA657068ApublicationCriticalpatent/ATA657068A/de
Application grantedgrantedCritical
Publication of AT327012BpublicationCriticalpatent/AT327012B/de