| 摘要 |
<p>Displaceable device (1) with an open lower side and a gangway means (3) such that a person can move on said gangway means (3) along said opening to work on a wall below (4) said device while said person is on said gangway means (3), and wherein said device (1) is preferably adapted for use outdoor under all weather conditions while safeguarding the persons thereon. Said gangway means (3) is displaceable aside with respect to the device (1). <IMAGE></p> |
