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Application filed by Zdenek Ing Sebela, Jaroslav Ing Vincent, Otakar Ing Csc Deyl, Metodej Machacek, Ivan Ing Drahos, Jaroslav Ing ZvodarfiledCriticalZdenek Ing Sebela
Priority to CS855868ApriorityCriticalpatent/CS258808B1/en
Publication of CS586885A1publicationCriticalpatent/CS586885A1/en
Publication of CS258808B1publicationCriticalpatent/CS258808B1/en