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 Jerabek Frantisek, Ladislav MotyckafiledCriticalJerabek Frantisek
Priority to CS88236ApriorityCriticalpatent/CS266059B1/en
Publication of CS23688A1publicationCriticalpatent/CS23688A1/en
Publication of CS266059B1publicationCriticalpatent/CS266059B1/en