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 Vladimir Ing Gubco, Bobovnicky JozeffiledCriticalVladimir Ing Gubco
Priority to CS862878ApriorityCriticalpatent/CS252750B1/en
Publication of CS287886A1publicationCriticalpatent/CS287886A1/en
Publication of CS252750B1publicationCriticalpatent/CS252750B1/en