摘要
该文提供了因特网（Ｉｎｔｅｒｎｅｔ）上有免费检索服务的世界各主要国家权威机构和信息公司的专利数据库、网址及基本检索方法。
The names and the addresses of the free searchable patent databases on Internet were provided in this paper.The basic ways of information search methods were also introduced.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1999年第2期243-243,252,255,共3页
Spectroscopy and Spectral Analysis
