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Priority to ES128170UpriorityCriticalpatent/ES128170Y/en
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Improved lottery game, tare d rizado essentially because the surface that presents the alveoli receptors of the balls is constituted by a sheet obtained by high vacuum, which is combined with another lower sheet of reinforcement, both sheets being substantially surrounded by a frame which acts as an anchoring base for the support of the drum that contains the balls. (Machine-translation by Google Translate, not legally binding)
A new mechanical device for subjecting surfaces in a particular way for the polishing operation (Machine-translation by Google Translate, not legally binding)