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 Otakar Herman, Prusek Jaroslav, Jiri PrivorafiledCriticalOtakar Herman
Priority to CS877765ApriorityCriticalpatent/CS263946B1/cs
Publication of CS776587A1publicationCriticalpatent/CS776587A1/cs
Publication of CS263946B1publicationCriticalpatent/CS263946B1/cs