SV

Suthaharan Velauthapillai

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,664,109 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5969306 Elevator car call buttons indicating car floor position Stephen A. Roberts, Christopher Pietrzykowski 1999-10-19