EK

Erich Kotthaus

WA Werkzeugmaschinenfabrik Oerlikon-Buehrle Ag: 1 patents #6 of 16Top 40%
📍 Wallisellen, CH: #1 of 2 inventorsTop 50%
Overall (1989): #116,504 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4799337 Method of grinding the teeth of bevel gears having longitudinally curved teeth 1989-01-24