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Priority to JP17691582UpriorityCriticalpatent/JPS5980586U/ja
Publication of JPS5980586UpublicationCriticalpatent/JPS5980586U/ja
Application grantedgrantedCritical
Publication of JPS6215347Y2publicationCriticalpatent/JPS6215347Y2/ja
"un juego de piezas de construccion consistente en especial en piezas prefabricadas de hormigon armado para un muro de sosten, una pared insonorizadora o similar".