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Application filed by Matti NurmifiledCriticalMatti Nurmi
Priority to FI860069ApriorityCriticalpatent/FI74802C/en
Publication of FI860069A0publicationCriticalpatent/FI860069A0/en
Publication of FI860069ApublicationCriticalpatent/FI860069A/en
Publication of FI74802BpublicationCriticalpatent/FI74802B/en
Application grantedgrantedCritical
Publication of FI74802CpublicationCriticalpatent/FI74802C/en