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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL11235701UpriorityCriticalpatent/PL61781Y1/en
Publication of PL112357U1publicationCriticalpatent/PL112357U1/en
Publication of PL61781Y1publicationCriticalpatent/PL61781Y1/en