Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from FI874737Aexternal-prioritypatent/FI874737A/en
Priority claimed from FI884238Aexternal-prioritypatent/FI884238A/en
Application filed by Valtion TeknillinenfiledCriticalValtion Teknillinen
Priority to FI884284ApriorityCriticalpatent/FI884284A/en
Publication of FI884284A0publicationCriticalpatent/FI884284A0/en
Publication of FI884284ApublicationCriticalpatent/FI884284A/en