闵行区专利检索分析网
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闵行区专利检索分析网(闵行区知识产权保护协会)
专利检索的网站有哪些 中国局:专利检索与服务系统欧专局:EPO-Searching for patents信息极全面,还提供有各种语言的对译美专局:Search for PatentsWIPO WIPO-Search International and National Patent Collections倭局:PatentUtility Model Gazette DB韩国局:KIPRIS(Korea Intellectual Property Rights Information Service),Free P...