Study on the Method of Analyzing Technology Evolution Based on Patent Documents

Fang Shu Hu Zhengyin Pang Hongshen Zhang Xian

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Library and Information Service ›› 2011, Vol. 55 ›› Issue (22) : 42-46.

Study on the Method of Analyzing Technology Evolution Based on Patent Documents

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2011, 55(22): 42-46

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