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Application filed by Bezdek Karel, Zdenek Ing Vasek, Bohumil Ing KralfiledCriticalBezdek Karel
Priority to CS869336ApriorityCriticalpatent/CS261075B1/en
Publication of CS933686A1publicationCriticalpatent/CS933686A1/en
Publication of CS261075B1publicationCriticalpatent/CS261075B1/en