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Priority to ES110792UpriorityCriticalpatent/ES110792Y/en
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Publication of ES110792YpublicationCriticalpatent/ES110792Y/en
Flexible seat characterized by being constituted by a frame in which are indicated an anterior frame near which and from its angles there are longitudinally joined two pairs of springs in spiral that forming an obtuse angle very open at their meeting point in which they are related by means of a washer they have another common tensor towards the central part; and another rear spar from whose angles located at their ends there are also two pairs of spiral springs joined longitudinally forming an obtuse angle less open than the previous and related to each other with another spring that stretches towards the center and two others that will then be said by means of a washer that serves as a link between them. (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of mechanisms for the transformation of chairs in stairs (Machine-translation by Google Translate, not legally binding)