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 Petr Ing FlorianfiledCriticalPetr Ing Florian
Priority to CS876469ApriorityCriticalpatent/CS261331B1/en
Publication of CS646987A1publicationCriticalpatent/CS646987A1/en
Publication of CS261331B1publicationCriticalpatent/CS261331B1/en