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Application filed by Miloslav Jiricek, Vladimir Ing Csc Roubal, Karel Rndr Topek, Jan VasekfiledCriticalMiloslav Jiricek
Priority to CS83535ApriorityCriticalpatent/CS251105B1/en
Publication of CS53583A1publicationCriticalpatent/CS53583A1/en
Publication of CS251105B1publicationCriticalpatent/CS251105B1/en