发明专利文献的特点及其挖掘利用

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 2095-462x|33|1|81-86

ISSN: 2095-462x

Source: 河北北方学院学报:社会科学版, Vol.33, Iss.1, 2017-01, pp. : 81-86

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Abstract