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 Erkki RuotsalainenfiledCriticalErkki Ruotsalainen
Priority to FI930019UpriorityCriticalpatent/FI590U1/en
Publication of FIU930019U0publicationCriticalpatent/FIU930019U0/en
Application grantedgrantedCritical
Publication of FI590U1publicationCriticalpatent/FI590U1/en