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Application filed by Mach Antonin, Kavka Jaroslav, Jozef Ing Hroch, Kapolka Jozef, Pavol BlaskovanfiledCriticalMach Antonin
Priority to CS818142ApriorityCriticalpatent/CS238813B1/en
Publication of CS814281A1publicationCriticalpatent/CS814281A1/en
Publication of CS238813B1publicationCriticalpatent/CS238813B1/en