Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832847 | Process for activated-sludge treatment of sewage or industrial waste water | Masahiro Fujii | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832847 | Process for activated-sludge treatment of sewage or industrial waste water | Masahiro Fujii | 1989-05-23 |