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 Nozicka Zdenek, Ladislav Behounek, Milan CervenyfiledCriticalNozicka Zdenek
Priority to CS846811ApriorityCriticalpatent/CS243184B1/cs
Publication of CS681184A1publicationCriticalpatent/CS681184A1/cs
Publication of CS243184B1publicationCriticalpatent/CS243184B1/cs