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What are the famous high-level patent offices in China?
List of four-star patent agencies (***9)

China Council for the Promotion of International Trade Patent and Trademark Office

Beijing sanyou intellectual property agency co., ltd.

Beijing liushen lawyer office

Shanghai patent and trademark office co., ltd

China Patent Agency (HK) Co., Ltd.

Beijing yinlong intellectual property agency co., ltd.

Beijing kangxin intellectual property agency co., ltd.

Beijing Lu Hao Intellectual Property Agency Co., Ltd.

Beijing Tongli Juncheng Intellectual Property Agency Co., Ltd.