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Application filed by Pechoucek Miroslav, Zdenek Ing BezdekfiledCriticalPechoucek Miroslav
Priority to CS836425ApriorityCriticalpatent/CS236529B1/en
Publication of CS642583A1publicationCriticalpatent/CS642583A1/en
Publication of CS236529B1publicationCriticalpatent/CS236529B1/en