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Application filed by Vlastimil Ing Csc Ehrenberger, Josef Ing Csc Valnicek, Jaroslav Ing Gola, Smidak Stepan, Svrcula Milan, Bodi Jan, Ivan Lubomir, Marcel KenffiledCriticalVlastimil Ing Csc Ehrenberger
Priority to CS846524ApriorityCriticalpatent/CS243693B1/en
Publication of CS652484A1publicationCriticalpatent/CS652484A1/en
Publication of CS243693B1publicationCriticalpatent/CS243693B1/en