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 Tuure VihinenfiledCriticalTuure Vihinen
Priority to FI901907ApriorityCriticalpatent/FI901907A/fi
Publication of FI901907A0publicationCriticalpatent/FI901907A0/fi
Priority to FI905045Aprioritypatent/FI87885C/fi
Publication of FI901907ApublicationCriticalpatent/FI901907A/fi