A Review on the Method of Analyzing Technological Evolution Based on Patent Documents

Hu Apei;Zhang Jing;Zhang Xiaoyu

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Journal of Modern Information ›› 2013, Vol. 33 ›› Issue (10) : 172-176. DOI: 10.3969/j.issn.1008-0821.2013.10.040
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A Review on the Method of Analyzing Technological Evolution Based on Patent Documents

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