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 Horak Ales, Karel LofflerfiledCriticalHorak Ales
Priority to CS874167ApriorityCriticalpatent/CS266904B1/en
Publication of CS416787A1publicationCriticalpatent/CS416787A1/en
Publication of CS266904B1publicationCriticalpatent/CS266904B1/en