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 Konecny Vaclav, Kovac StefanfiledCriticalKonecny Vaclav
Priority to CS873118ApriorityCriticalpatent/CS261414B1/en
Publication of CS311887A1publicationCriticalpatent/CS311887A1/en
Publication of CS261414B1publicationCriticalpatent/CS261414B1/en