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 Vladek Ing Lacina, Jan Ing Csc Macek, Karel Ing Csc MiffekfiledCriticalVladek Ing Lacina
Priority to CS853643ApriorityCriticalpatent/CS253452B1/en
Priority to DD29044286Aprioritypatent/DD266480A3/en
Publication of CS364385A1publicationCriticalpatent/CS364385A1/en
Publication of CS253452B1publicationCriticalpatent/CS253452B1/en