Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798770 | Heat resisting and insulating light alloy articles and method of manufacture | Tadashi Donomoto, Mototsugu Koyama | 1989-01-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798770 | Heat resisting and insulating light alloy articles and method of manufacture | Tadashi Donomoto, Mototsugu Koyama | 1989-01-17 |