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Individual
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Individual
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Priority to ES0056720UpriorityCriticalpatent/ES56720Y/en
Publication of ES56720UpublicationCriticalpatent/ES56720U/en
Application grantedgrantedCritical
Publication of ES56720YpublicationCriticalpatent/ES56720Y/en
An improved block, which essentially consists of a cylindrical metal shell, one of whose bases is spherical, requiring two lateral recesses, while the other open base is enlarged forming a protective rim that holds the edges of the side walls, being filling the interior of said metallic envelope with esparto rope, hemp or other similar fiber. (Machine-translation by Google Translate, not legally binding)