ZS

Zhengbao Shi

OE Otis Elevator: 1 patents #88 of 253Top 35%
Overall (2021): #188,994 of 548,734Top 35%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11078044 Ring assembly for elevator governor, governor and elevator system — 2021-08-03