Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687631 | Speed change mechanism for swash plate type hydraulic motor | Young-Bog Ham | 1997-11-18 |
| 5630707 | Variable displacement mechanism for swash plate type hydraulic pump and motor | Young-Bog Ham | 1997-05-20 |