| 摘要 |
The invention relates to a tamperproof information ticket. This ticket consists of at least one transparent top layer or sheet (2), the surface of which is designed to accept confidential printing (3), and of at least one bottom layer or sheet (4) comprising means (B) of falsifying said confidential printing (5), the falsifying means being visible through the said top layer or sheet. The falsifying means (B) can be inactivated irreversibly by deforming at least part of said bottom layer or sheet. Application to the provision of a confidential code. |
