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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES1970161509UpriorityCriticalpatent/ES161509Y/en
Publication of ES161509UpublicationCriticalpatent/ES161509U/en
Application grantedgrantedCritical
Publication of ES161509YpublicationCriticalpatent/ES161509Y/en
Shutter-drain plug, characterized in that a central cylinder with through holes at its lower end and an inner central prominence are provided in a proper cap. (Machine-translation by Google Translate, not legally binding)