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 Jan Skrepek, Milan Reinisch, Vaclav SokolfiledCriticalJan Skrepek
Priority to CS871978ApriorityCriticalpatent/CS259984B1/en
Publication of CS197887A1publicationCriticalpatent/CS197887A1/en
Publication of CS259984B1publicationCriticalpatent/CS259984B1/en