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 Josef Ing HomolafiledCriticalJosef Ing Homola
Priority to CS88493ApriorityCriticalpatent/CS266930B1/en
Publication of CS49388A1publicationCriticalpatent/CS49388A1/en
Publication of CS266930B1publicationCriticalpatent/CS266930B1/en