Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323458 | Process for removing heavy-metal ions from aqueous solution | Masahide Hirai, Tsutomu Sakaida | 1982-04-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323458 | Process for removing heavy-metal ions from aqueous solution | Masahide Hirai, Tsutomu Sakaida | 1982-04-06 |