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 Semel OyfiledCriticalSemel Oy
Priority to FI1538/74ApriorityCriticalpatent/FI153874A7/fi
Publication of FI153874A7publicationCriticalpatent/FI153874A7/fi