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 Simunek, Vaclav ZhouffiledCriticalJosef Simunek
Priority to CS656777ApriorityCriticalpatent/CS193304B1/cs
Publication of CS193304B1publicationCriticalpatent/CS193304B1/cs