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 Ludek Ing Csc PulpitelfiledCriticalLudek Ing Csc Pulpitel
Priority to CS869262ApriorityCriticalpatent/CS260827B1/en
Publication of CS926286A1publicationCriticalpatent/CS926286A1/en
Publication of CS260827B1publicationCriticalpatent/CS260827B1/en