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 Hlavaty, Zdenek Ing Kolman, Bohumil Ing Musil, Prchlik Vojtech, Kareling Slezak, Vavra Zdenek, Vurm VladimirfiledCriticalJaroslav Ing Hlavaty
Priority to CS8410187ApriorityCriticalpatent/CS243244B1/en
Publication of CS1018784A1publicationCriticalpatent/CS1018784A1/en
Publication of CS243244B1publicationCriticalpatent/CS243244B1/en