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Application filed by Jaroslav Ing Burda, Frantisek Ing Csc Urban, Zdenek Ing Tomes, Josef Ing BouskafiledCriticalJaroslav Ing Burda
Priority to CS844516ApriorityCriticalpatent/CS240895B1/en
Publication of CS451684A1publicationCriticalpatent/CS451684A1/en
Publication of CS240895B1publicationCriticalpatent/CS240895B1/en