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Application filed by Inst Budownictwa MechfiledCriticalInst Budownictwa Mech
Priority to PL94303573ApriorityCriticalpatent/PL173217B1/en
Publication of PL303573A1publicationCriticalpatent/PL303573A1/en
Publication of PL173217B1publicationCriticalpatent/PL173217B1/en