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Application filed by Starek Jiri, Karel Ing Petrzelka, Bretislav StanekfiledCriticalStarek Jiri
Priority to CS837782ApriorityCriticalpatent/CS241606B1/en
Publication of CS778283A1publicationCriticalpatent/CS778283A1/en
Publication of CS241606B1publicationCriticalpatent/CS241606B1/en