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Application filed by Leopold Kolarovic, Vladimir Mynar, Milan Pesl, Emil Dzierza, Ladislav Tomaj, Ivan Wlachovsky, Jozef MeciarfiledCriticalLeopold Kolarovic
Priority to CS567577ApriorityCriticalpatent/CS192297B1/cs
Publication of CS192297B1publicationCriticalpatent/CS192297B1/cs
CS567577A1977-08-311977-08-31Method of working the thick seams of the service minerals by the longwall mining in at least two working faces
CS192297B1
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