CORC

浏览/检索结果: 共3条,第1-3条 帮助

限定条件    
已选(0)清除 条数/页:   排序方式:
Automatic spinning device for perforating bullet storage cover used in oil field, has upper and lower molds that are rotated at preset pressure to complete spinning circulation of storage cover. 专利
申请日期: 2010-01-01, 公开日期: 2010-01-20
作者:  WANG L WANG X XU W
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/24
Magnesium alloy plate extruding formation process involves upper and lower extrusion molds, workpiece, layer of steel sheet, magnesium alloy plate and upper extrusion modes. 专利
申请日期: 2005-01-01, 公开日期: 2005-09-28
作者:  LIU L DONG C
收藏  |  浏览/下载:9/0  |  提交时间:2020/01/02
Method for producing a hybrid integrated optical circuit and device for emitting light waves 专利
专利号: US5475775, 申请日期: 1995-12-12, 公开日期: 1995-12-12
作者:  KRAGL, HANS;  RECH, WOLF-HENNING
收藏  |  浏览/下载:7/0  |  提交时间:2019/12/24


©版权所有 ©2017 CSpace - Powered by CSpace