| http://www.w3.org/ns/prov#value | - Patente US4949870 - Reinforced pouring assembly and its method of construction - Google PatentesB???squeda Im???genes Maps Play YouTube Noticias Gmail Drive M???s ??Iniciar sesi???n B???squeda avanzada de patentesPatentesA device for perforating a pack made of flexible synthetic material and having a closing-off and pouring assembly including a cylindrical shank and a plug for interacting with the
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