| 摘要 |
<p>The sample book has a number of separate sample holding members coupled together by connecting elements. Each connecting element has a four-sided hollow box shape (24, 36, 38, 44; 26, 40, 42, 46, 48) with a rear wall (44; 46, 48) opposite the sample holding portion (28, 30, 32) divided by a single spring-action slit (50, 52) which holds coupling elements (54, 56). Each coupling element is a U profile whose side members are thickened at points (66, 68) on their inside surfaces. These thickned portions engage behind the edges of the slits to lock the coupling elements in the slits.</p> |
