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鲤鱼诀:专利在哪看呀?是有个专门的网站吗? Iq: G9M (2020-06-14 19:49) WRfhxl
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wdyb88:可以参考专利期已过公布的专利 (2017-06-30 21:47) BP`'1Ns
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wdyb88:可以参考专利期已过公布的专利 (2017-06-30 21:47) g*& |Eq/
鲤鱼诀:专利在哪看呀?是有个专门的网站吗? ZgzjRa++ (2020-06-14 19:49) BIk0n;Kz<L
蠊蠊:http://www.innojoy.com/search/index.htmlhttp://www.patviewer.com/ 分享两个 (2020-06-14 20:40) ~z kzuh
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