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 Jan Bucko, Jozef JanikfiledCriticalJan Bucko
Priority to CS865661ApriorityCriticalpatent/CS261520B1/cs
Publication of CS566186A1publicationCriticalpatent/CS566186A1/cs
Publication of CS261520B1publicationCriticalpatent/CS261520B1/cs