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 Otto Starek, Jaroslav TrojanekfiledCriticalOtto Starek
Priority to CS898674ApriorityCriticalpatent/CS185328B1/cs
Publication of CS185328B1publicationCriticalpatent/CS185328B1/cs