Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340428 | Semi-permeable asymmetrical membrance and process of producing same | Karl W. Boddeker | 1982-07-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340428 | Semi-permeable asymmetrical membrance and process of producing same | Karl W. Boddeker | 1982-07-20 |