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Application filed by Miloslav Svaton, Bohumil Husek, Zdenek NavratilfiledCriticalMiloslav Svaton
Priority to CS7600006037ApriorityCriticalpatent/CS186020B1/cs
Priority to DD7700201021Aprioritypatent/DD131937A1/xx
Priority to PL1977200900Aprioritypatent/PL103011B1/xx
Publication of CS186020B1publicationCriticalpatent/CS186020B1/cs