Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874709 | Solvent and method for the Karl-Fischer determination of water | Wolfgang Fischer | 1989-10-17 |
| 4851352 | Solvent composition for the determination of water by the Karl Fischer method | Wolfgang Fischer, Edda Arlt | 1989-07-25 |