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Priority claimed from FI891893Aexternal-prioritypatent/FI83559C/en
Application filed by Suomen Vuolukivi OyfiledCriticalSuomen Vuolukivi Oy
Priority to FI893031ApriorityCriticalpatent/FI83116C/en
Publication of FI893031A0publicationCriticalpatent/FI893031A0/en
Publication of FI893031ApublicationCriticalpatent/FI893031A/en
Application grantedgrantedCritical
Publication of FI83116BpublicationCriticalpatent/FI83116B/en
Publication of FI83116CpublicationCriticalpatent/FI83116C/en