Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662766 | Tool horn converting longitudinal vibration to torsional vibration | Takehisa Ishikawa, Tomio Maruzoe | 1997-09-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662766 | Tool horn converting longitudinal vibration to torsional vibration | Takehisa Ishikawa, Tomio Maruzoe | 1997-09-02 |