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 Rudolf BenakfiledCriticalRudolf Benak
Priority to CS885552ApriorityCriticalpatent/CS269667B1/en
Publication of CS555288A1publicationCriticalpatent/CS555288A1/en
Publication of CS269667B1publicationCriticalpatent/CS269667B1/en