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 Ing Hyrsl, Kitzler JaroslavfiledCriticalJan Ing Hyrsl
Priority to CS41089ApriorityCriticalpatent/CS273547B1/en
Publication of CS41089A1publicationCriticalpatent/CS41089A1/en
Publication of CS273547B1publicationCriticalpatent/CS273547B1/en