| 摘要 |
<p>The sofa or armchair are covered by at least two loose covering elements (19, 20), superimposable and reciprocally interchangeable. The framework of the sofa is provided with elements allowing the contemporaneous blocking of both the covering so that they become fixed during the use. The removal of the superior covering allows the immediate use of the inferior covering; so if the superior covering is less elegant, one can immediately use the inferior one, more elegant, with the simple removal of the superior covering. The interchangeability of the inferior covering with the superior one make the sofa easy to be useed in a convenient way. <IMAGE></p> |
