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 Kejnovsky Bohumil, Otakar Stork, Pavlik VladimirfiledCriticalKejnovsky Bohumil
Priority to CS883954ApriorityCriticalpatent/CS267022B1/en
Publication of CS395488A1publicationCriticalpatent/CS395488A1/en
Publication of CS267022B1publicationCriticalpatent/CS267022B1/en