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 Frantisek Doc Srbek, Sabata Stanislav, Josef Ing Matejka, Zuzana Ing KubikovafiledCriticalFrantisek Doc Srbek
Priority to CS844666ApriorityCriticalpatent/CS243837B1/cs
Publication of CS466684A1publicationCriticalpatent/CS466684A1/cs
Publication of CS243837B1publicationCriticalpatent/CS243837B1/cs