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 Rysti & Co AbfiledCriticalRysti & Co Ab
Priority to FI752190ApriorityCriticalpatent/FI752190A7/fi
Priority to SE7605971Aprioritypatent/SE407932B/xx
Priority to NO762149Aprioritypatent/NO144482C/no
Publication of FI752190A7publicationCriticalpatent/FI752190A7/fi