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 Pekka Antero TikkanenfiledCriticalPekka Antero Tikkanen
Priority to FI981678ApriorityCriticalpatent/FI981678A0/sv
Publication of FI981678A0publicationCriticalpatent/FI981678A0/sv