YS

Yunzhu Shen

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #2,921,958 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10150648 Tie-down device for compensation sheave, compensation sheave and elevator — 2018-12-11