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Priority claimed from FI861373Aexternal-prioritypatent/FI861373A0/en
Application filed by Sekko Ab OyfiledCriticalSekko Ab Oy
Priority to FI871263ApriorityCriticalpatent/FI75443C/en
Publication of FI871263A0publicationCriticalpatent/FI871263A0/en
Publication of FI871263ApublicationCriticalpatent/FI871263A/en
Application grantedgrantedCritical
Publication of FI75443BpublicationCriticalpatent/FI75443B/en
Publication of FI75443CpublicationCriticalpatent/FI75443C/en