| 摘要 |
An anti-theft device of the view-concealing type with a cover (1), a suction cup (8) and an operating member for operating the suction cup. A plate (11) is rigidly attached in the suction cup, and with the aid of manually operated means (23, 2, 14, 12) the suction cup is activated so that its retaining force will be greater that the rupture limit of the material in the object to be protected against theft. Electromagnetic and/or permanent magnet means may be used for activating the suction cup. |
