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Priority claimed from BE664837Aexternal-prioritypatent/BE664837A/fr
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Priority to BE671674ApriorityCriticalpatent/BE671674A/fr
Publication of BE671674ApublicationCriticalpatent/BE671674A/fr
Dispositif permettant de decouvrir et/ou de couvrir l'ouverture d'un bassin de piscine a partir d'abris bas du type elements de toiture juxtaposes