DB

Dietmar Berkhan

OE Otis Elevator: 1 patents #5 of 30Top 20%
Overall (1989): #33,348 of 140,708Top 25%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4875558 Safety brake for escalators Martin Mehlert 1989-10-24