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Application filed by Pavel Ing Hrivnak, Fridrich Oswald, Novak Ladislav, Guba Gustav, Peter Ing Prizemin, Viera Rndr Matejekova, Jozef Sipos, Paulovic Milan, Rudolf Ing Doka, Teofil Ing Kulhavy, Robert Ing Csc BartonicekfiledCriticalPavel Ing Hrivnak
Priority to CS856660ApriorityCriticalpatent/CS254168B1/en
Publication of CS666085A1publicationCriticalpatent/CS666085A1/en
Publication of CS254168B1publicationCriticalpatent/CS254168B1/en