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鲤鱼诀:专利在哪看呀?是有个专门的网站吗? 2>'/!/+R (2020-06-14 19:49) Av,E|C
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wdyb88:可以参考专利期已过公布的专利 (2017-06-30 21:47) 0tyS=X;#e
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wdyb88:可以参考专利期已过公布的专利 (2017-06-30 21:47) 92 oUQ EK
鲤鱼诀:专利在哪看呀?是有个专门的网站吗? 5 J 7XVe> (2020-06-14 19:49) GiKmB-HO
蠊蠊:http://www.innojoy.com/search/index.htmlhttp://www.patviewer.com/ 分享两个 (2020-06-14 20:40) pax;#*QcQ
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