Sichuan
China
7
2022-07-07
The entities that hold a legal rights for patent applications filed by inventor Guo Jun:
Jun Guo from Sichuan, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Core barrel sealing structure capable of increasing sealing-specific pressure
#2 | 2022-07-07Drilling control mechanism of core drilling rig
#3 | 2022-07-07Control mechanism of core drilling rig
#4 | 2022-07-07Coring drill tool driving structure
#5 | 2022-07-07Driving system for core drilling rig
#6 | 2022-07-07Drilling mechanism of coring drilling rig
#7 | 2022-07-07Drilling fluid channel structure of core drilling rig
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