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Priority to ES0214765ApriorityCriticalpatent/ES214765A1/es
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Nuevo procedimiento de obturación y descarga de líquidos , caracterizado por comprender un récord cerrado a modo de tapón o cubierta adaptable o fija con aberturas laterales destinadas para el paso del líquido y una guía cilíndrica o tubular en el centro para el deslizamiento del vástago hueco, formando todo un conjunto de descarga.
ES0214765A1954-04-131954-04-13Un nuevo procedimiento de obturacion y descarga de liquidos
ExpiredES214765A1
(es)