Inventor

LIU KUOTIAN

CN2 patents

Patents

2 patents

US11225830B2Jan 18, 2022

Vertical sliding window

CHANGCHUN KUOER TECH CO LTD4 citations63

US11473341B2Oct 18, 2022

Sliding window emergency opening system

CHANGCHUN KUOER TECH CO LTD0 citations42