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Individual
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Individual
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Priority to ES0068418UpriorityCriticalpatent/ES68418U/en
Publication of ES68418UpublicationCriticalpatent/ES68418U/en
Aural earplug for swimming, characterized in that it is constituted by a piece of rubber, hollow and slightly frustoconical, drilled axially, which at its narrowest end has a semi-spherical cap, cut by the plane of the hole of said hole and which in its lower part It has a grooved projection with respect to the body of the cap. (Machine-translation by Google Translate, not legally binding)
ES0068418U1958-09-131958-09-13Ear plug for swimming (Machine-translation by Google Translate, not legally binding)
PendingES68418U
(en)