RP

Ralf Peter

AG Arthur Pfeiffer Vakummtechnik Wetzlar Gmbh: 1 patents #2 of 6Top 35%
📍 Haiger, DE: #2 of 3 inventorsTop 70%
Overall (1989): #67,410 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4850576 Heat treatment of materials Robert Hack, Wilhelm Polhede 1989-07-25