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 Smejkal VilemfiledCriticalSmejkal Vilem
Priority to CS828763ApriorityCriticalpatent/CS237585B1/cs
Publication of CS876382A1publicationCriticalpatent/CS876382A1/cs
Publication of CS237585B1publicationCriticalpatent/CS237585B1/cs