| 摘要 |
The holder has elastic organs (4) that hold a marble (3) and are joined to a base (7) that rests on a surface (9). The periphery of the base has complementary zones of assembly (10,11) to join it to another holder. The zones of assembly are two male slides (10,10') and two female slides (11,11') and the male slide is inserted into the female slide by sliding along an axis (XX') perpendicular to the surface. The slides are at 90 deg to one another and the same slides are opposite each other.
|
