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Application filed by Fracasso MetalmeccanicafiledCriticalFracasso Metalmeccanica
Priority to IT93BO000073priorityCriticalpatent/ITBO930073U1/en
Publication of ITBO930073V0publicationCriticalpatent/ITBO930073V0/en
Publication of ITBO930073U3publicationCriticalpatent/ITBO930073U3/en
Publication of ITBO930073U1publicationCriticalpatent/ITBO930073U1/en
PREFABRICATED CONCRETE ELEMENT FOR THE CONSTRUCTION OF CROSSING CUNICLES FOR RAILWAY OR ROAD SURVEYS AND PROCEDURE FOR THE CONSTRUCTION OF SUCH CUNICLES.