PDF(6017 KB)
Comparative Study on Patent Information Retrieval Tools of Chinese and Foreign Network
Yue Quan, Yan Yiping
Library and Information Service ›› 2005, Vol. 49 ›› Issue (9) : 84-88.
PDF(6017 KB)
PDF(6017 KB)
Comparative Study on Patent Information Retrieval Tools of Chinese and Foreign Network
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