因特网上专利信息的免费检索方法

The Free Retrieval of Patent Information on the Internet

重点介绍因特网上国内外著名的专利数据库的网址、内容和专利文献的免费检索方法。

Introduces the web sites and contents of patent databases well-known at home and abroad as well as the free retrieval of patent information on the Internet.