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Application filed by Cestmir Ing Sedivy, Arnost Ing Vidmar, Vladimir KuklafiledCriticalCestmir Ing Sedivy
Priority to CS878966ApriorityCriticalpatent/CS264481B1/en
Publication of CS896687A1publicationCriticalpatent/CS896687A1/en
Publication of CS264481B1publicationCriticalpatent/CS264481B1/en