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aidenna:国家知识产权局:http://www.sipo.gov.cn/zljs/ pif gt 专利搜索引擎:http://www.soopat.com/ h! <8=V( (2014-03-22 12:41) vY6|V$
aidenna:比较常用而且好用的是soopat (2014-03-22 12:42) EQ28pAZ
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