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Priority claimed from FI871223Aexternal-prioritypatent/FI871223A0/en
Application filed by Jouko SiivolafiledCriticalJouko Siivola
Priority to FI880513ApriorityCriticalpatent/FI81249C/en
Publication of FI880513A0publicationCriticalpatent/FI880513A0/en
Publication of FI880513LpublicationCriticalpatent/FI880513L/en
Application grantedgrantedCritical
Publication of FI81249BpublicationCriticalpatent/FI81249B/en
Publication of FI81249CpublicationCriticalpatent/FI81249C/en