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Priority claimed from FI802716Aexternal-prioritypatent/FI802716A/en
Application filed by Pekka Kariniemi, Mauri KariniemifiledCriticalPekka Kariniemi
Priority to FI810580ApriorityCriticalpatent/FI810580L/en
Publication of FI810580LpublicationCriticalpatent/FI810580L/en