Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691282 | Lubricant composition for use on workpieces in the hot forming of metals | Hans-Rudolf Staub | 1997-11-25 |
| 5661116 | Lubricant composition for preventing carborization in the production of seamless pipes | — | 1997-08-26 |