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
Priority claimed from FI801554Aexternal-prioritypatent/FI59278C/fi
Application filed by Valmet OyfiledCriticalValmet Oy
Application grantedgrantedCritical
Publication of ATE10656T1publicationCriticalpatent/ATE10656T1/de