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鲤鱼诀:专利在哪看呀?是有个专门的网站吗? ! z**y}<T (2020-06-14 19:49) N0lC0 N?_J
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wdyb88:可以参考专利期已过公布的专利 (2017-06-30 21:47) *i,%,O96Nz
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wdyb88:可以参考专利期已过公布的专利 (2017-06-30 21:47) XUYtEf
鲤鱼诀:专利在哪看呀?是有个专门的网站吗? 7dWS (2020-06-14 19:49) P0@,fd<
蠊蠊:http://www.innojoy.com/search/index.htmlhttp://www.patviewer.com/ 分享两个 (2020-06-14 20:40) =X}J6|>X
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