利用专利分析层级获得知识产权竞争情报优势——以氢燃料电池专利为例
晁蓉, 龙敏
利用专利分析层级获得知识产权竞争情报优势——以氢燃料电池专利为例
Gain the Advantage of Intellectual Property Competitive Intelligence by Using Patent Analysis Hierarchy—Taking the Hydrogen Fuel Cell Patent as an Example
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