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Individual
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Priority to ES0068914UpriorityCriticalpatent/ES68914Y/en
Publication of ES68914UpublicationCriticalpatent/ES68914U/en
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Publication of ES68914YpublicationCriticalpatent/ES68914Y/en
Electrical apparatus for making grooves or chafing on the walls, characterized in that it is essentially constituted by an electric motor provided with a handle that rotates a flexible shaft driven inside a tube, which shaft communicates at its end with a wheel milling hard material, which is the one that makes the chafing on the partition. (Machine-translation by Google Translate, not legally binding)
ES0068914U1958-10-091958-10-09
Electric device to make grooves or chases in the walls
ExpiredES68914Y
(en)