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Application filed by Vojtech Ing Karasek, Vanek Vladimir, Karel KachtikfiledCriticalVojtech Ing Karasek
Priority to CS847741ApriorityCriticalpatent/CS245436B1/en
Publication of CS774184A1publicationCriticalpatent/CS774184A1/en
Publication of CS245436B1publicationCriticalpatent/CS245436B1/en