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 Ing Grapl, Pavlas Pavel, Dvorak Bohumir, Lubojacky JaromirfiledCriticalJiri Ing Grapl
Priority to CS875996ApriorityCriticalpatent/CS263848B1/en
Publication of CS599687A1publicationCriticalpatent/CS599687A1/en
Publication of CS263848B1publicationCriticalpatent/CS263848B1/en