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Application filed by Waagner Biro AgfiledCriticalWaagner Biro Ag
Priority to AT19456ApriorityCriticalpatent/AT213570B/de
Priority to DE1957W0016646prioritypatent/DE1834632U/de
Application grantedgrantedCritical
Publication of AT213570BpublicationCriticalpatent/AT213570B/de