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Application filed by Jozef Ing Fetterik, Marian Ing Pavlik, Jozef PallerfiledCriticalJozef Ing Fetterik
Priority to CS839186ApriorityCriticalpatent/CS243902B1/cs
Publication of CS918683A1publicationCriticalpatent/CS918683A1/cs
Publication of CS243902B1publicationCriticalpatent/CS243902B1/cs