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 FI853293Aexternal-prioritypatent/FI73765C/en
Application filed by Tampella Oy AbfiledCriticalTampella Oy Ab
Priority to FI901334ApriorityCriticalpatent/FI83343C/en
Publication of FI901334A0publicationCriticalpatent/FI901334A0/en
Application grantedgrantedCritical
Publication of FI83343BpublicationCriticalpatent/FI83343B/en
Publication of FI83343CpublicationCriticalpatent/FI83343C/en