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 Yrjoe Tapio LainefiledCriticalYrjoe Tapio Laine
Priority to FI990200ApriorityCriticalpatent/FI990200A0/fi
Publication of FI990200A0publicationCriticalpatent/FI990200A0/fi