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 Oldrich EderfiledCriticalOldrich Eder
Priority to CS867914ApriorityCriticalpatent/CS264820B1/cs
Publication of CS791486A1publicationCriticalpatent/CS791486A1/cs
Publication of CS264820B1publicationCriticalpatent/CS264820B1/cs