WC

Wei Jin Chao

C( Cmech (Guangzhou): 2 patents #2 of 3Top 70%
Overall (2021): #100,692 of 548,734Top 20%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11091947 Hydraulic door closer capable of reducing oil-pressure therein in high temperature — 2021-08-17
11091948 Hydraulic door closer capable of reducing oil-pressure therein in high temperature — 2021-08-17