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Application filed by Vladimir Ing Siska, Bernhardt Ing Poitz, Jozef Ing KerteszfiledCriticalVladimir Ing Siska
Priority to CS827197ApriorityCriticalpatent/CS231782B1/en
Publication of CS719782A1publicationCriticalpatent/CS719782A1/en
Publication of CS231782B1publicationCriticalpatent/CS231782B1/en