Hits:

Disigner of the Invention:jingshengguo

Note:荆升国

Type of Patent:国际

State of Patent:专利撤回

Application Number:200620073317.9

Number of Inventors:2

Service Invention or Not:no

Application Date:2006-05-30

Authorization Date:2008-01-16

First Author:xiewenbing

Pre One:一种滑动构造区极松软厚煤层煤巷掘进迎头防顶煤漏冒方法 Next One:一种外置式锚索与棚式支护耦合装置