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Application filed by Jozef Ing Matuska, Rudolf Prof Ing Csc HarmanfiledCriticalJozef Ing Matuska
Priority to CS874487ApriorityCriticalpatent/CS261098B1/cs
Publication of CS448787A1publicationCriticalpatent/CS448787A1/cs
Publication of CS261098B1publicationCriticalpatent/CS261098B1/cs