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 Martti Heikkinen, Antto Haeyrinen, Heikki Kekaelaeinen, Erkki Kettunen, Aarno Klemettilae, Jorma Komulainen, Risto Kinnunen, Pekka Miettinen, Antti Pitkaenen, Eero Sinkko, Hannu TervonenfiledCriticalMartti Heikkinen
Priority to FI980167ApriorityCriticalpatent/FI102795B/fi
Publication of FI980167A0publicationCriticalpatent/FI980167A0/fi
Application grantedgrantedCritical
Publication of FI102795B1publicationCriticalpatent/FI102795B1/fi
Publication of FI102795BpublicationCriticalpatent/FI102795B/fi