Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441439 | Method of finishing a surface of a workpiece | Hans Grimm, Walter Lang, Ernst Lang, Ulrich Klink | 1995-08-15 |
| 5095662 | Process for honing bores and a honing machine for performing the process | Hans Grimm | 1992-03-17 |