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 Novak Jiri, Josef Ing ZuklinfiledCriticalNovak Jiri
Priority to CS572988ApriorityCriticalpatent/CS273456B1/cs
Publication of CS572988A1publicationCriticalpatent/CS572988A1/cs
Publication of CS273456B1publicationCriticalpatent/CS273456B1/cs