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 IndruchfiledCriticalJaroslav Ing Indruch
Priority to CS837747ApriorityCriticalpatent/CS250805B1/en
Publication of CS774783A1publicationCriticalpatent/CS774783A1/en
Publication of CS250805B1publicationCriticalpatent/CS250805B1/en