Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880246 | Self-tightening drill chuck | — | 1989-11-14 |
| 4877259 | Power-driven chuck | Karl Pesch | 1989-10-31 |
| 4872691 | Lathe chuck | — | 1989-10-10 |
| 4844482 | Drill chuck | — | 1989-07-04 |
| 4836563 | Selftightening drill chuck | — | 1989-06-06 |
| 4819319 | Power chuck retainer for rotating spindle | — | 1989-04-11 |