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 Jaroslav Ing Jirek, Jaromir Ing ZechafiledCriticalJaroslav Ing Jirek
Priority to CS838482ApriorityCriticalpatent/CS243626B1/cs
Publication of CS848283A1publicationCriticalpatent/CS848283A1/cs
Publication of CS243626B1publicationCriticalpatent/CS243626B1/cs