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Application filed by Jaroslav Ing Csc Rocek, Ivan Ing Opocensky, Jaroslav Parma, Vaclav Ing MaxafiledCriticalJaroslav Ing Csc Rocek
Priority to CS869444ApriorityCriticalpatent/CS258094B1/en
Publication of CS944486A1publicationCriticalpatent/CS944486A1/en
Publication of CS258094B1publicationCriticalpatent/CS258094B1/en