Research on Technology Evolution in the Revised IPC Classification

Xu Jinglong, Zhao Yajuan

Library and Information Service ›› 2021, Vol. 65 ›› Issue (15) : 140-152.

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Library and Information Service
PDF(2861 KB)
Library and Information Service ›› 2021, Vol. 65 ›› Issue (15) : 140-152. DOI: 10.13266/j.issn.0252-3116.2021.15.016

Research on Technology Evolution in the Revised IPC Classification

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2021, 65(15): 140-152 https://doi.org/10.13266/j.issn.0252-3116.2021.15.016

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