Patents
一种磨料射流钻头
- Disigner of the Invention:季明,李德玉,毛勇,linboquan
- Type of Patent:国际
- State of Patent:专利授权
- Application Number:201220661356.6
- Number of Inventors:5
- Service Invention or Not:no
- Application Date:2012-12-05
- Authorization Date:2013-05-22
- First Author:wuhaijin
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