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Application filed by Inst Odlewnictwa, Lgtu Le G Techniczeskij UnifiledCriticalInst Odlewnictwa
Priority to PL29124191ApriorityCriticalpatent/PL166953B1/pl
Publication of PL291241A1publicationCriticalpatent/PL291241A1/xx
Publication of PL166953B1publicationCriticalpatent/PL166953B1/pl