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Individual
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Individual
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Priority to ES0047900UpriorityCriticalpatent/ES47900U/en
Publication of ES47900UpublicationCriticalpatent/ES47900U/en
A bottle-thermos with air chamber, characterized by being formed by a double container of plastic material, connecting the interior with the exterior by means of a joining piece that holds them by welds made in separate rods arranged so that it is between them an air chamber; presenting, in addition, along its perimeter a third interior, in which the lid fits under pressure. (Machine-translation by Google Translate, not legally binding)
ES0047900U1955-05-051955-05-05A thermos bottle with air chamber (Machine-translation by Google Translate, not legally binding)
PendingES47900U
(en)