CW

chiou nan Wang

Overall (All Time): #1,632,537 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5878845 Auxiliary emergency escape device of elevator — 1999-03-09
5713433 Auxiliary escape of elevator — 1998-02-03
5680911 Elector emergency device — 1997-10-28