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Application filed by Ard AnstaltfiledCriticalArd Anstalt
Priority to FI3071/74ApriorityCriticalpatent/FI62920C/fi
Publication of FI307174A7publicationCriticalpatent/FI307174A7/fi
Application grantedgrantedCritical
Publication of FI62920BpublicationCriticalpatent/FI62920B/fi
Publication of FI62920CpublicationCriticalpatent/FI62920C/fi