Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323326 | Self-drilling screw | Mitsuo Okada, Yoshihisa Matsumoto | 1982-04-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323326 | Self-drilling screw | Mitsuo Okada, Yoshihisa Matsumoto | 1982-04-06 |