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Application filed by Inst Szkla I Ceramiki W WarszafiledCriticalInst Szkla I Ceramiki W Warsza
Priority to PL26929487ApriorityCriticalpatent/PL157090B1/en
Publication of PL269294A1publicationCriticalpatent/PL269294A1/en
Publication of PL157090B1publicationCriticalpatent/PL157090B1/en