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Application filed by Miroslav Mach, Vaclav Chrz, Josef Ing Jindra, Josef FilipfiledCriticalMiroslav Mach
Priority to CS862001ApriorityCriticalpatent/CS255113B1/en
Publication of CS200186A1publicationCriticalpatent/CS200186A1/en
Publication of CS255113B1publicationCriticalpatent/CS255113B1/en