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 Otto Eerikki Urpala, Leena Salmio, Jan Sten, Risto Suominen, Ville VeijalainenfiledCriticalOtto Eerikki Urpala
Priority to FI20080558ApriorityCriticalpatent/FI20080558A0/en
Publication of FI20080558A0publicationCriticalpatent/FI20080558A0/en