Patent AT-E400447-T1: [Translated] OPTICALLY VARIABLE ELEMENT WITH ELECTRICALLY ACTIVE LAYER
收藏data.gov2025-12-20 收录
下载链接：
https://catalog.data.gov/dataset/patent-at-e400447-t1-translated-optically-variable-element-with-electrically-active-layer
下载链接
链接失效反馈官方服务：
资源简介：
There is described a security element having at least one optically variable device, in which at least one layer of the optically variable device is in the form of an...
提供机构：
U.S. Department of Health & Human Services
