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 Bohumil Prom Chem Braunstein, Miroslav Ing Stary, Jaroslav Rezek, Antonin John, Jaroslav Ing HurtfiledCriticalBohumil Prom Chem Braunstein
Priority to CS824219ApriorityCriticalpatent/CS232370B1/en
Publication of CS421982A1publicationCriticalpatent/CS421982A1/en
Publication of CS232370B1publicationCriticalpatent/CS232370B1/en