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Purplevine ip
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purplevineip.com
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紫藤知识产权集团成立于中国深圳,是一家立足中国、面向国际的高端知识产权服务机构,致力于搭建国际创新合作与知识产权价值实现的桥梁。
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purplevineip.com
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