Inventor
QI WENYUE
CN3 patents
Patents
3 patentsUS10895154B2Jan 19, 2021
Base mechanism of single prop capable of being unloaded at reduced pressure
UNIV CHINA MINING1 citations58
US10352167B2Jul 16, 2019
Process method for withdrawing and recovering mechanical constant-resistance single prop
UNIV CHINA MINING0 citations39
US10113854B2Oct 30, 2018
Device and method for detecting wall abrasion of solid filler feeding well
UNIV CHINA MINING0 citations39