| 摘要 |
The present invention relates to a binder for sheets or cards comprising a spine member (1) provided with one or more longitudinal recesses (3, 4), having a substantially circular cross-section. In each recess (3, 4) there is inserted at least one support (5) having substantially circular cross-section and provided with means for fixing at least one external sheet of the binder, and at least on of said recesses (4) has an opening suitable for allowing rotation inside it of support (5) and of the external sheet fixed thereto. Said spine member (1) is provided in the central zone with a fastener for said sheets or cards and/or at least one holder (2) for said fastener. |
