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 Pravdomil DostalfiledCriticalPravdomil Dostal
Priority to CS87436ApriorityCriticalpatent/CS265013B1/en
Priority to PL27021888Aprioritypatent/PL270218A1/en
Publication of CS43687A1publicationCriticalpatent/CS43687A1/en
Publication of CS265013B1publicationCriticalpatent/CS265013B1/en