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 Bretislav Ing SkrbekfiledCriticalBretislav Ing Skrbek
Priority to CS863679ApriorityCriticalpatent/CS256324B1/en
Publication of CS367986A1publicationCriticalpatent/CS367986A1/en
Publication of CS256324B1publicationCriticalpatent/CS256324B1/en