Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5038452 | Method of assembling an improved ratcheting tool driver | Anthony F. Beugelsdyk, Chun-Hsiung Lin | 1991-08-13 |
| 4901607 | Ratcheting tool driver and method of assembling an improved ratcheting tool driver | Anthony F. Beugelsdyk, Chun-Hsiung Lin | 1990-02-20 |