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Application filed by Fernando Gordon BurillofiledCriticalFernando Gordon Burillo
Priority to PT8403586ApriorityCriticalpatent/PT84035A/pt
Publication of PT84035ApublicationCriticalpatent/PT84035A/pt
Prefabricated retaining elements for protecting, reinforcing and/or lining excavations, anchoring and connecting devices, and method for using these elements and devices