ip8

The official website of the European Patent Office (EPO). Find information on applying and searching for patents, legal issues on patents, patent grants, rules and regulations about European and international patent applications. Explore engineering careers and apply for jobs in engineering.

Trademark Electronic Search System (TESS)

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发现最好的网站，并探索竞争对手和相关的网站，这个扩展使你能够浏览相关内容。

yalala是一个集代理IP检测、浏览器指纹在线检测、IP伪装度查询、时区、DNS、webrtc、UA、画布指纹、插件指纹、音频指纹、窗口指纹、字体指纹等检测查询工具网站

GTmetrix is a free tool to test and monitor your page's performance. Using Lighthouse, GTmetrix generates scores for your pages and offers actionable recommendations on how to optimize them.