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Method of using fixing device for pulling metal rod used in civil engineering field, involves attaching a wedge block to an end of a sub-block by hammering process for fastening the metal rod with the wedge block. 专利
申请日期: 2016-01-01, 公开日期: 2016-02-24
作者:  DONG H GUO B HAN Y LI J WANG B CHAN
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/09
Slice sticking method for hard brittle crystal thin substrate grinding and polishing. 专利
申请日期: 2007-01-01, 公开日期: 2007-03-14
作者:  KANG R WANG K JIN Z GUO D DONG Z
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/27
6-ALKYL DIHYDROPYRAZOLOPYRIMIDINONE COMPOUNDS AS PDE2 INHIBITORS 专利
作者:  SHEN, Dong-Ming;  DWYER, Michael;  SINZ, Christopher J.;  WANG, Deping;  STACHEL, Shawn
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/05


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