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Priority to ES1975211096UpriorityCriticalpatent/ES211096Y/es
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Soporte articulado para libretas y portafolios, caracterizado por llevar un perfil de sección en U con el alma ligeramente arqueado, este perfil lleva montadas unas series de argollas partidas que abren y cierran a voluntad por medio de una palanca de presión.
ES1975211096U1975-03-261975-03-26Soporte articulado para libretas y portafolios.
ExpiredES211096Y
(es)
Un metodo para la preparacion de un metal perteneciente a los grupos ivb y vb del sistema periodico de los elementos ode una aleacion de dichos metales.