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 Ivan Ing Oravec, Jan Ing SimonffyfiledCriticalIvan Ing Oravec
Priority to CS851319ApriorityCriticalpatent/CS244998B1/cs
Publication of CS131985A1publicationCriticalpatent/CS131985A1/cs
Publication of CS244998B1publicationCriticalpatent/CS244998B1/cs