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 Jiri Vogt, Vaclav PenazfiledCriticalJiri Vogt
Priority to CS558770ApriorityCriticalpatent/CS187504B1/cs
Publication of CS187504B1publicationCriticalpatent/CS187504B1/cs