"machine for perforating and concreteing a tunnel in continuous" (Machine-translation by Google Translate, not legally binding)
RIVAS DE LA RIEGA JOSE LUIS, BOSCH CANTALLOPS BARTOLOME CARLO, FERNANDEZ LUCO LUIS, MARTIN DIAZ ELENA, BALLESTER MUNOZ FRANCISCO, RIOB SUAREZ OLGA
Year of Publication 05.05.2010
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Year of Publication 05.05.2010
Patent