FD

Friedrich Dorgathen

📍 Ratingen, DE: #179 of 508 inventorsTop 40%
Overall (All Time): #2,370,199 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4261826 Magnet cleaning device 1981-04-14
4209403 Magnetic filter apparatus 1980-06-24