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 Vaahto OyfiledCriticalVaahto Oy
Priority to FI964979ApriorityCriticalpatent/FI964979A0/en
Publication of FI964979A0publicationCriticalpatent/FI964979A0/en