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Application filed by Inst Techniki BudowlanejfiledCriticalInst Techniki Budowlanej
Priority to PL24868484ApriorityCriticalpatent/PL142975B1/en
Publication of PL248684A1publicationCriticalpatent/PL248684A1/en
Publication of PL142975B1publicationCriticalpatent/PL142975B1/en