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Application filed by Viljo LukkarinenfiledCriticalViljo Lukkarinen
Priority to FI841865ApriorityCriticalpatent/FI75929C/en
Publication of FI841865A0publicationCriticalpatent/FI841865A0/en
Publication of FI841865ApublicationCriticalpatent/FI841865A/en
Publication of FI75929BpublicationCriticalpatent/FI75929B/en
Application grantedgrantedCritical
Publication of FI75929CpublicationCriticalpatent/FI75929C/en