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Application filed by Smidrkal Jan, Jaroslav Ing Simunek, Vaclav Krob, Soucek Jiri, Jiri Tolman, Alois Ing Drsc Novacek, Miroslav Ing Klofec, Bohumir Ing VondracekfiledCriticalSmidrkal Jan
Priority to CS834860ApriorityCriticalpatent/CS251255B1/en
Publication of CS486083A1publicationCriticalpatent/CS486083A1/en
Publication of CS251255B1publicationCriticalpatent/CS251255B1/en