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Application filed by Hans Dr PetrischekfiledCriticalHans Dr Petrischek
Priority to AT15376ApriorityCriticalpatent/AT339843B/de
Publication of ATA15376ApublicationCriticalpatent/ATA15376A/de
Application grantedgrantedCritical
Publication of AT339843BpublicationCriticalpatent/AT339843B/de