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 Pavel Smejkal, Anton Blazej, Antonin Podrouzek, Ladislav BlazekfiledCriticalPavel Smejkal
Priority to CS841876ApriorityCriticalpatent/CS187749B1/cs
Publication of CS187749B1publicationCriticalpatent/CS187749B1/cs