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 Alexander Prom Fyz Hosovsky, Milan Ing BalarafiledCriticalAlexander Prom Fyz Hosovsky
Priority to CS89706ApriorityCriticalpatent/CS271992B1/en
Publication of CS70689A1publicationCriticalpatent/CS70689A1/en
Publication of CS271992B1publicationCriticalpatent/CS271992B1/en