WK

Werner Korfmann

RA Ruhrkohle Ag: 1 patents #1 of 8Top 15%
📍 Witten, DE: #5 of 17 inventorsTop 30%
Overall (1982): #78,570 of 81,411Top 100%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4361079 Apparatus for extending ventilating conduits Hans Jørgen Christensen, Paul Schlager 1982-11-30