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VALLS BOIX JOSE
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VALLS BOIX JOSE
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Priority to ES0066197UpriorityCriticalpatent/ES66197Y/es
Publication of ES66197UpublicationCriticalpatent/ES66197U/es
Application grantedgrantedCritical
Publication of ES66197YpublicationCriticalpatent/ES66197Y/es
Tornillo perfeccionado, caracterizado por que su espiga roscada posee una cabeza en la cual, centrado, va un vaciado que presenta dos canales entrecruzados perpendicularmente unidos entre sí por el vaciado central.