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 Veikko ParviainenfiledCriticalVeikko Parviainen
Priority to FI850457ApriorityCriticalpatent/FI850457L/fi
Publication of FI850457A0publicationCriticalpatent/FI850457A0/fi
Publication of FI850457LpublicationCriticalpatent/FI850457L/fi