How to Find out the Patent Literature without Literal Classification in IPC

Wang Xiaoping

Library and Information Service ›› 1995, Vol. 39 ›› Issue (4) : 49-50.

PDF(546 KB)
Library and Information Service
PDF(546 KB)
Library and Information Service ›› 1995, Vol. 39 ›› Issue (4) : 49-50.

How to Find out the Patent Literature without Literal Classification in IPC

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 1995, 39(4): 49-50

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