WK

Wilhelm Kallen

📍 Wittlich, DE: #11 of 38 inventorsTop 30%
Overall (1989): #43,947 of 140,708Top 35%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4832107 Method of producing a cast-iron element Rudi Hass, Georg Jansen 1989-05-23