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| Steel rail fixing device comprises a cylindrical shell, a permanent magnet, spring, fixing bolt, a top plate and a lower top plate, where an electric power heating part is set with a machine glass plate. 专利 申请日期: 2014-01-01, 公开日期: 2014-08-13 作者: WANG D LI L WANG L ZHANG H DAI H LI
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:2/0  |  提交时间:2019/12/11 |
| Polarization independent optical isolator with integrally assembled birefringent crystal element and Faraday rotator 专利 专利号: US6048103, 申请日期: 2000-04-11, 公开日期: 2000-04-11 作者: FURUKATA, YUKIKO; SATO, YASUSHI; SUGA, TETSUYA
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:6/0  |  提交时间:2019/12/24 |
| Semiconductor laser module 专利 专利号: JP1992116508A, 申请日期: 1992-04-17, 公开日期: 1992-04-17 作者: ODAGIRI YUICHI
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:9/0  |  提交时间:2020/01/13 |
| Bidirectional semiconductor laser module 专利 专利号: JP1991106091A, 申请日期: 1991-05-02, 公开日期: 1991-05-02 作者: OKUDA MICHITAKA; SATO YASUSHI
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:9/0  |  提交时间:2019/12/31 |
| Optical isolator and semiconductor laser module incorporated with optical isolator 专利 专利号: JP1990301714A, 申请日期: 1990-12-13, 公开日期: 1990-12-13 作者: SHIBANUMA NAOTERU
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:6/0  |  提交时间:2019/12/30 |
| Semiconductor module 专利 专利号: JP1988181389A, 申请日期: 1988-07-26, 公开日期: 1988-07-26 作者: ABE YUJI
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:12/0  |  提交时间:2020/01/13 |
| Semiconductor laser module with optical isolator 专利 专利号: JP1986070516A, 申请日期: 1986-04-11, 公开日期: 1986-04-11 作者: SAKANO SHINJI; NAGATSUMA KAZUYUKI; MATSUMURA HIROYOSHI; KAYANO NAOKI
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:8/0  |  提交时间:2019/12/31 |