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Application filed by Vratislav Svarovsky, Miloslav Ing Krecan, Oleg Ing Csc Engel, Vratislav Ing Kouril, Frantisek Ing KreglfiledCriticalVratislav Svarovsky
Priority to CS862102ApriorityCriticalpatent/CS259730B1/en
Publication of CS210286A1publicationCriticalpatent/CS210286A1/en
Publication of CS259730B1publicationCriticalpatent/CS259730B1/en