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.)
Filing date
Publication date
Application filed by Jouko Reino Ilmari SiivolafiledCriticalJouko Reino Ilmari Siivola
Priority to FI863141ApriorityCriticalpatent/FI863141A0/en
Publication of FI863141A0publicationCriticalpatent/FI863141A0/en