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Application filed by Borivoj Ing Malek, Jiri Ing PorkertfiledCriticalBorivoj Ing Malek
Priority to CS84684ApriorityCriticalpatent/CS240580B1/en
Publication of CS68484A1publicationCriticalpatent/CS68484A1/en
Publication of CS240580B1publicationCriticalpatent/CS240580B1/en