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Application filed by Jan Ing Dolenek, Raska Pavel, Ludek Ing Kodrle, Vladimir Ing Sousek, Ivan Ing Bucina, Irena Ing Csc Malatova, Josef Ing Hakl, Jan Ing Csc SingerfiledCriticalJan Ing Dolenek
Priority to CS856875ApriorityCriticalpatent/CS261361B1/en
Publication of CS687585A1publicationCriticalpatent/CS687585A1/en
Publication of CS261361B1publicationCriticalpatent/CS261361B1/en