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 Ladislav Ing Dohnal, Milos KotekfiledCriticalLadislav Ing Dohnal
Priority to CS843685ApriorityCriticalpatent/CS242390B1/en
Publication of CS368584A1publicationCriticalpatent/CS368584A1/en
Publication of CS242390B1publicationCriticalpatent/CS242390B1/en