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Priority to ES1967132358UpriorityCriticalpatent/ES132358Y/en
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Publication of ES132358YpublicationCriticalpatent/ES132358Y/en
Improved window insulation sheet, characterized by the use of two glass panels that bend at the margins in a certain curvature, are welded together forming a single piece and delimiting a watertight compartment between said panels. (Machine-translation by Google Translate, not legally binding)