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Application filed by Jozef Ing Mercell, Ivan Ing PinkafiledCriticalJozef Ing Mercell
Priority to CS696789ApriorityCriticalpatent/CS274099B1/en
Publication of CS696789A1publicationCriticalpatent/CS696789A1/en
Publication of CS274099B1publicationCriticalpatent/CS274099B1/en