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 Ulc, Jaroslav Pasek, Zdenek Ing Valtr, Vaclav Ing CernyfiledCriticalJaroslav Ing Ulc
Priority to CS837589ApriorityCriticalpatent/CS245107B1/en
Publication of CS758983A1publicationCriticalpatent/CS758983A1/en
Publication of CS245107B1publicationCriticalpatent/CS245107B1/en