The Characteristics And Retrieval Methods of the Worldwide Patent Databases on Internet

Zhai Yunxian, Wan Yuehua

Library and Information Service ›› 2001, Vol. 45 ›› Issue (10) : 47-50.

PDF(4422 KB)
Library and Information Service
PDF(4422 KB)
Library and Information Service ›› 2001, Vol. 45 ›› Issue (10) : 47-50.

The Characteristics And Retrieval Methods of the Worldwide Patent Databases on Internet

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2001, 45(10): 47-50

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