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Application filed by Jaroslav Ing Kholl, Vladimir Ing PodholafiledCriticalJaroslav Ing Kholl
Priority to CS848240ApriorityCriticalpatent/CS245942B1/en
Publication of CS824084A1publicationCriticalpatent/CS824084A1/en
Publication of CS245942B1publicationCriticalpatent/CS245942B1/en