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Application filed by Josef Habrovansky, Frantisek Barina, Jiri Rybka, Ludvik Kloubec, Pavel Fuerst, Petr Sevela, Rostislav Tupy, Jaroslav VavrusafiledCriticalJosef Habrovansky
Priority to CS856563ApriorityCriticalpatent/CS251741B1/en
Publication of CS656385A1publicationCriticalpatent/CS656385A1/en
Publication of CS251741B1publicationCriticalpatent/CS251741B1/en