KO

Keiko Ozawa

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,541,655 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6374952 Elevator door apparatus Hideki Itoh 2002-04-23