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 Matti Kullervo HalmefiledCriticalMatti Kullervo Halme
Priority to FI980589ApriorityCriticalpatent/FI980589A0/en
Publication of FI980589A0publicationCriticalpatent/FI980589A0/en