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Inventor
WANG HUALU
CN
2 patents
Patents
2 patents
US10907767B2
Feb 2, 2021
Guide rail oiling tool
BOE TECHNOLOGY GROUP CO LTD
1 citations
57
US9934948B2
Apr 3, 2018
Magnetron-sputtering coating system and method, and display substrate
BOE TECHNOLOGY GROUP CO LTD
0 citations
40