| 摘要 |
FIELD: magnetic cards, finance. ^ SUBSTANCE: card has at least one semi-transparent and/or fully transparent surface and machine-readable structure, containing material, having a property not to let through infrared light and mainly let through visible light, while machine-readable structure is distributed along whole surface of card. ^ EFFECT: possible reading of card independently of position in reader. ^ 9 cl, 31 dwg, 4 ex |
