Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885070 | Method and apparatus for the application of materials | Gregor A. Campbell, Robert W. Conn, Dan M. Goebel, Rolf Adam, Hans-Georg Betz +7 more | 1989-12-05 |
| 4821791 | Melting furnace for producing strand-cast ingots in a protective gas atmosphere | Herbert Stephan, Hermann Stumpp, Walter Dietrich, Michael Kiessling | 1989-04-18 |