HS

Hans Schaefer

DR Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler: 1 patents #5 of 32Top 20%
📍 Lakewood, CA: #1 of 7 inventorsTop 15%
🗺 California: #1,105 of 6,198 inventorsTop 20%
Overall (1982): #60,630 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4366138 Carbon black useful for pigment for black lacquers Edith Eisenmenger, Richard Engel, Gerhard Kuhner, Reinhold Reck, Manfred Voll 1982-12-28