中国专利信息网

type: text

text: 国家知识产权局

link: www.cnipa.gov.cn

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type: text

text: 香港知识产权署

link: www.ipd.gov.hk

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type: text

text: 美国专利商标局

link: www.uspto.gov

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type: text

text: 欧洲专利局

link: www.epo.org

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type: text

text: 日本特许厅

link: www.jpo.go.jp

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type: text

text: 苏州工作站

link: www.nanopolis.cn

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www.patent.com.cn