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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES1970157102UpriorityCriticalpatent/ES157102Y/en
Publication of ES157102UpublicationCriticalpatent/ES157102U/en
Application grantedgrantedCritical
Publication of ES157102YpublicationCriticalpatent/ES157102Y/en
Educational blackboard, which is characterized because on a support surface one of its sides adheres to another of flexible and transparent nature and of equal measures. (Machine-translation by Google Translate, not legally binding)