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Application filed by Venjukovsky Armaturny ZfiledCriticalVenjukovsky Armaturny Z
Priority to AT234974ApriorityCriticalpatent/AT335641B/de
Publication of ATA234974ApublicationCriticalpatent/ATA234974A/de
Application grantedgrantedCritical
Publication of AT335641BpublicationCriticalpatent/AT335641B/de