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Application filed by Inst Techniki BudowlanejfiledCriticalInst Techniki Budowlanej
Priority to PL19984877ApriorityCriticalpatent/PL109539B1/pl
Publication of PL199848A1publicationCriticalpatent/PL199848A1/pl
Publication of PL109539B1publicationCriticalpatent/PL109539B1/pl