Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806435 | Small hole electric discharge machine drill provided with depth-specific processing means | Hiroshi Ishiwata, Tomoshige Ishiwata | 2004-10-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806435 | Small hole electric discharge machine drill provided with depth-specific processing means | Hiroshi Ishiwata, Tomoshige Ishiwata | 2004-10-19 |