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Application filed by Vladimir Javurek, Bures Zdenek, Sebor VaclavfiledCriticalVladimir Javurek
Priority to CS838670ApriorityCriticalpatent/CS241210B1/en
Publication of CS867083A1publicationCriticalpatent/CS867083A1/en
Publication of CS241210B1publicationCriticalpatent/CS241210B1/en