BZ

BiSheng Zheng

Overall (2023): #171,207 of 537,848Top 35%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11564482 Screw rod self-locking device, and height-adjustable leg and height-adjustable desk applying the same 2023-01-31
11564483 Height-adjustable desk 2023-01-31