发明名称 |
Engraved image identification card with opaque cover layer |
摘要 |
An engraved image identification card has a translucent planar base member with a multiplicity of engraved scores extending into one of its surfaces with an opaque layer positioned adjacent either the engraved side of the translucent member or the non-engraved side of the translucent member opposite the engraved side to provide enhancement of the contrast between the engraved and non-engraved regions in the translucent member.
|
申请公布号 |
US4451068(A) |
申请公布日期 |
1984.05.29 |
申请号 |
US19810330348 |
申请日期 |
1981.12.14 |
申请人 |
CALIFORNIA INTERFACE AND SOFTWARE LIMITED PARTNERSHIP |
发明人 |
HALL, JOHN S.;PHELPS, BARRY C. |
分类号 |
B42D15/10;(IPC1-7):B42D15/00 |
主分类号 |
B42D15/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|