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 Karel Doc Ing Csc Rozum, Miroslav Ing Havrland, Radomir StiborfiledCriticalKarel Doc Ing Csc Rozum
Priority to CS886254ApriorityCriticalpatent/CS270483B1/en
Publication of CS625488A1publicationCriticalpatent/CS625488A1/en
Publication of CS270483B1publicationCriticalpatent/CS270483B1/en