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Application filed by Mojmir Blaha, Augustin CvilinekfiledCriticalMojmir Blaha
Priority to CS427776ApriorityCriticalpatent/CS186468B1/cs
Priority to DD19971977Aprioritypatent/DD131137A1/xx
Priority to SU772501307Aprioritypatent/SU990391A1/ru
Publication of CS186468B1publicationCriticalpatent/CS186468B1/cs