| 摘要 |
The invention relates to the obliteration of signatures from credit or bank cards. It involves the obliteration of the area 2 on which the signature is written either by mechanical means such as engraving for heat deformation or by pressure, or alternatively by an indelible chemical alteration adapted to the kind of material of which the card 1 is made. The purpose is to render the signature illegible in order to attract the attention of the receiving agent and compel him to run a check on the identity of the bearer. <IMAGE> |
