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Application filed by Jaroslav Ing Sugra, Jozef KuncfiledCriticalJaroslav Ing Sugra
Priority to CS849948ApriorityCriticalpatent/CS240349B1/cs
Publication of CS994884A1publicationCriticalpatent/CS994884A1/cs
Publication of CS240349B1publicationCriticalpatent/CS240349B1/cs