Patents/Inventors

Chengliang Yan

JinanCN1 patent

2 Patents

US122868502025
Full-hole Reverse Circulation Cluster-type Down-the-hole (DTH) Hammer with Multiple Independent Channels
HAOZHOU DRILLING ENGINEERING MACHINERY (SHANDONG) CO., Ltd.
0 cites
USD09888882023
Laser Radar
ZVISION TECHNOLOGIES CO., Ltd.
0 cites