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Priority to JP12897882UpriorityCriticalpatent/JPS5931600U/ja
Publication of JPS5931600UpublicationCriticalpatent/JPS5931600U/ja
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Publication of JPS6217360Y2publicationCriticalpatent/JPS6217360Y2/ja
Machine made of a set of equipment for the inspection and the maintenance of the lower surfaces of road and railway bridges, as well as viaducts and their respective piers