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 FI3133/73Aexternal-prioritypatent/FI313373A7/fi
Priority claimed from FI2869/74Aexternal-prioritypatent/FI286974A7/fi
Application filed by Tampella Oy AbfiledCriticalTampella Oy Ab
Priority to NO743622ApriorityCriticalpatent/NO743622L/no
Publication of NO743622LpublicationCriticalpatent/NO743622L/no