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Un dispositivo para la salida de gases en las pilas secas galvánicas, consistente en una prolongación o lengüeta (f) del disco de cierre (d), cuya prolongación se dobla hacia arriba al montar el disco, y una vez aplicado el chatterton atraviesa este.
ES0003783U1935-05-271935-05-27Dispositivo para la salida de gases de las pilas galvanizadas.
ExpiredES3783Y
(es)