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S A Casamitjana Mensa
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S A Casamitjana Mensa
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Priority to ES108289UpriorityCriticalpatent/ES108289U/es
Publication of ES108289UpublicationCriticalpatent/ES108289U/es
Un tapón perfeccionado caracterizado esencialmente por el hecho de estar constituido por una base plana provista de un faldón a escuadra con reborde anular interno a partir del cual se prolonga dicho faldón según una pared que presenta un trazado helicoidal de débil espesor para el rasgado de la citada pared la cual comprende 10. a su vez en su borde interior de embocadura otro resalte anular interno.
Procedimiento para la fabricacion de dihidro-benzotiadiazina-1,1 dioxidos y benzotiadiazina-1,1-dioxidos, sustituidos en las posiciones segunda y tercera