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Application filed by Jan Sliwa, Bonifacy GmurfiledCriticalJan Sliwa
Priority to PL95307014ApriorityCriticalpatent/PL175093B1/en
Publication of PL307014A1publicationCriticalpatent/PL307014A1/en
Publication of PL175093B1publicationCriticalpatent/PL175093B1/en