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 Josef RubasfiledCriticalJosef Rubas
Priority to CS87861ApriorityCriticalpatent/CS268089B1/en
Publication of CS86187A1publicationCriticalpatent/CS86187A1/en
Publication of CS268089B1publicationCriticalpatent/CS268089B1/en