Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816122 | Preparation of aluminum fluoride from scrap aluminum cell potlinings | — | 1989-03-28 |
| 4810510 | Method of smoking food | Yoshitaka Yanagawa | 1989-03-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816122 | Preparation of aluminum fluoride from scrap aluminum cell potlinings | — | 1989-03-28 |
| 4810510 | Method of smoking food | Yoshitaka Yanagawa | 1989-03-07 |