发明名称 Light card
摘要 In a light card comprising a base and at least one light emitting element disposed on the base, a cover layer is provided which consists of a light permeable foil which, except for a light permeable area, is imprinted by a light impermeable coloring agent.
申请公布号 US2004205988(A1) 申请公布日期 2004.10.21
申请号 US20040824559 申请日期 2004.04.14
申请人 KOHLER KARSTEN;KOHLER KURT 发明人 KOHLER KARSTEN;KOHLER KURT
分类号 B42D15/02;(IPC1-7):G09F1/00 主分类号 B42D15/02
代理机构 代理人
主权项
地址