Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419877 | Method of manufacturing a cylindrical sleeve provided with internal grooves, and tool for carrying out this method | — | 1983-12-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419877 | Method of manufacturing a cylindrical sleeve provided with internal grooves, and tool for carrying out this method | — | 1983-12-13 |