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 Martinovsky, Frantisek Janousek, Pavel JirmanfiledCriticalJosef Martinovsky
Priority to CS765975ApriorityCriticalpatent/CS184120B1/cs
Publication of CS184120B1publicationCriticalpatent/CS184120B1/cs