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Application filed by Veli Veijo Antero MiettinenfiledCriticalVeli Veijo Antero Miettinen
Priority to FI874368ApriorityCriticalpatent/FI79063C/en
Publication of FI874368A0publicationCriticalpatent/FI874368A0/en
Publication of FI874368ApublicationCriticalpatent/FI874368A/en
Application grantedgrantedCritical
Publication of FI79063BpublicationCriticalpatent/FI79063B/en
Publication of FI79063CpublicationCriticalpatent/FI79063C/en