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 Ing Cvecek, Petr Ing Fukal, Mundl Jiri, Polasek JirifiledCriticalJosef Ing Cvecek
Priority to CS856225ApriorityCriticalpatent/CS253485B1/en
Publication of CS622585A1publicationCriticalpatent/CS622585A1/en
Publication of CS253485B1publicationCriticalpatent/CS253485B1/en