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Lámina flexible de plástico con superficie provista de abultamientos interiormente huecos caracterizada por el hecho de estar constituída por dos capas soldadamente unidas entre sí de manera discontínua a través de toda sus superficies y mantenidas separadas por bolsas de aire establecidas en las zonas no soldadas de manera que dichas bolsas constituyen abultamientos en una o en ambas capas.
ES127850U1967-02-011967-02-01Lámina flexible de plástico con superficie provista de abultamientos huecos
PendingES127850U
(es)
Dispositif comprenant un ou plusieurs joints d'étanchéité réalisés sous forme de membrane enroulée, entre deux éléments coaxiaux mobiles l'un par rapport à l'autre