中美篮球用品专利质量指数实证研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1009-783x|28|3|265-269

ISSN: 1009-783x

Source: 首都体育学院学报, Vol.28, Iss.3, 2016-01, pp. : 265-269

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Abstract