| 发明名称 |
Security filament for use in identification cards |
| 摘要 |
A filament for use with identification cards to render them tamper and fraud resistant having a meltable core of twisted polymeric micro-filaments which is wrapped with metal foil in a manner to leave portions of the core exposed.
|
| 申请公布号 |
US4618167(A) |
申请公布日期 |
1986.10.21 |
| 申请号 |
US19840578650 |
申请日期 |
1984.02.09 |
| 申请人 |
WHITEHEAD, EDWIN N. |
发明人 |
WHITEHEAD, EDWIN N. |
| 分类号 |
B42D15/00;D02G3/12;D02G3/38;D02G3/44;G07F7/08;(IPC1-7):B42D15/00 |
主分类号 |
B42D15/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
