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 Kaarlo E VirtanenfiledCriticalKaarlo E Virtanen
Priority to FI920105UpriorityCriticalpatent/FI113U1/fi
Publication of FIU920105U0publicationCriticalpatent/FIU920105U0/fi
Application grantedgrantedCritical
Publication of FI113U1publicationCriticalpatent/FI113U1/fi