Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6443038 | Open-end wrench for turning normal and worn-out bolts and nuts of different specifications | — | 2002-09-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6443038 | Open-end wrench for turning normal and worn-out bolts and nuts of different specifications | — | 2002-09-03 |