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 Eduard SkorpilfiledCriticalEduard Skorpil
Priority to CS687177ApriorityCriticalpatent/CS190267B1/cs
Publication of CS190267B1publicationCriticalpatent/CS190267B1/cs