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Application filed by Emil Ing Csc Pscolka, Vladimir Ing Arch Prah MlejnekfiledCriticalEmil Ing Csc Pscolka
Priority to CS842883ApriorityCriticalpatent/CS243213B1/en
Publication of CS288384A1publicationCriticalpatent/CS288384A1/en
Publication of CS243213B1publicationCriticalpatent/CS243213B1/en