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 Vojtech Havlik, Mojzisek JaroslavfiledCriticalVojtech Havlik
Priority to CS876057ApriorityCriticalpatent/CS268296B1/en
Publication of CS605787A1publicationCriticalpatent/CS605787A1/en
Publication of CS268296B1publicationCriticalpatent/CS268296B1/en