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甘肃省失效专利分析
赵勇; 马建霞
2017-07
Keyword甘肃省+失效专利+分析
Subject Area科学计量学
Document Type研究报告
Identifierhttp://ir.las.ac.cn/handle/12502/9632
Collection中国科学院兰州文献情报中心_文献信息服务部
Affiliation中国科学院兰州文献情报中心
Recommended Citation
GB/T 7714
赵勇,马建霞. 甘肃省失效专利分析. 2017.
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