Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885136 | Method of anticorrosive treatment for soft water boilers | Sakae Katayama, Hirohiko Katayama, Yoshinari Kawasaki | 1989-12-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885136 | Method of anticorrosive treatment for soft water boilers | Sakae Katayama, Hirohiko Katayama, Yoshinari Kawasaki | 1989-12-05 |