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Application filed by Inst Techniki BudowlanejfiledCriticalInst Techniki Budowlanej
Priority to PL27023388ApriorityCriticalpatent/PL155388B1/en
Publication of PL270233A1publicationCriticalpatent/PL270233A1/en
Publication of PL155388B1publicationCriticalpatent/PL155388B1/en