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Application filed by Południowy Koncern Węglowy Spółka AkcyjnafiledCriticalPołudniowy Koncern Węglowy Spółka Akcyjna
Priority to PL389379ApriorityCriticalpatent/PL217074B1/en
Publication of PL389379A1publicationCriticalpatent/PL389379A1/en
Publication of PL217074B1publicationCriticalpatent/PL217074B1/en