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 Bohumil NovakfiledCriticalBohumil Novak
Priority to CS862211ApriorityCriticalpatent/CS259733B1/cs
Publication of CS221186A1publicationCriticalpatent/CS221186A1/cs
Publication of CS259733B1publicationCriticalpatent/CS259733B1/cs