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 Jyrki Tarkkonen Oy, Rautaruukki OyfiledCriticalJyrki Tarkkonen Oy
Priority to FI980460UpriorityCriticalpatent/FI3815U1/en
Publication of FIU980460U0publicationCriticalpatent/FIU980460U0/en
Application grantedgrantedCritical
Publication of FI3815U1publicationCriticalpatent/FI3815U1/en