| 摘要 |
<p>The device, preferably for use on seagoing ships, consists of a case and a frame which can be connected to the case. The case is constructed with an undercut and a projection adjoining the latter, the frame being constructed with a web which can be inserted behind the projection and into the undercut. The clearance between mutually opposing projections is slightly smaller than the corresponding spacing between the web ends for the purpose of inserting the frame into the case. <IMAGE></p> |
