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Individual
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Individual
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Priority to ES340269ApriorityCriticalpatent/ES340269A1/es
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Un nuevo sistema de vagones de ferrocarril subterráneo o metropolitano, que hace posible el aumento de estos vagones y con ello el de su capacidad de viajeros a un convoy subterráneo sin tener que aumentar la longitud de sus estaciones de carga y descarga