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Application filed by Polacek Antonin, Otto Ing Prossr, Ludek Ing DostalfiledCriticalPolacek Antonin
Priority to CS845625ApriorityCriticalpatent/CS242733B1/cs
Publication of CS562584A1publicationCriticalpatent/CS562584A1/cs
Publication of CS242733B1publicationCriticalpatent/CS242733B1/cs