SS

Stuart B. Spence

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,965,357 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4793441 Elevator car system with three guide rails Janis J. Cilderman 1988-12-27