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 Bauer, Zdenek SvobodafiledCriticalRudolf Bauer
Priority to CS691175ApriorityCriticalpatent/CS181987B1/cs
Publication of CS181987B1publicationCriticalpatent/CS181987B1/cs