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蓝山办公网

蓝山办公是一家致力于office软件开发及提供office办公素材的公司,广大用户可以在线下载PPT、Excel、Word各种创意模板及素材,并提供PPT、Excel、Word各种教程教学,让用户更方便更熟悉的使用各种office办公软件,欢迎广大用户收藏网站并分享给身边的人使用。

2022-09-08 - 收藏 点击查看

html中文网

html中文网-专业的web前端开发在线学习、培训、交流平台!大量精品前端学习图文、视频教程及下载资源,可边学习边编程实战,快速成为前端工程师!

2022-04-03 - 收藏 点击查看

United States Patent and Trademark Office

The United States Patent and Trademark Office (USPTO) is the federal agency for granting U.S. patents and registering trademarks. In doing this, the USPTO fulfills the mandate of Article I, Section 8, Clause 8, of the Constitution that the legislative branch \"promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries.\" The USPTO registers trademarks based on the commerce clause of the Constitution (Article I, Section 8, Clause 3). Under this system of protection, American industry has flourished. New products have been invented, new uses for old ones discovered, and employment opportunities created for millions of Americans. The strength and vitality of the U.S. economy depends directly on effective mechanisms that protect new ideas and investments in innovation and creativity. The continued demand for patents and trademarks underscores the ingenuity of American inventors and entrepreneurs. The USPTO is at the cutting edge of the nation\'s technological progress and achievement.

2020-01-17 - 收藏 点击查看

田梅雨办公家具

田梅雨办公家具www.tmyoffice.com 北京田梅雨办公家具有限公司是以设计、研发、制造、销售和专业服务为一体的办公家具生产企业,主要销售各种中高档班台、班椅、文件柜、屏风工作位、职员桌椅及其他会议桌、办公沙发和教学等系列办公家具。

2020-01-05 - 收藏 点击查看

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