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 Povolny, Juraj Ing Stanek, Miroslav Ing FrisfiledCriticalRudolf Povolny
Priority to CS85710ApriorityCriticalpatent/CS243320B1/en
Publication of CS71085A1publicationCriticalpatent/CS71085A1/en
Publication of CS243320B1publicationCriticalpatent/CS243320B1/en