Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853190 | Process & apparatus for the production of hydrogen cyanide | Reinhard Manner, Hans Schaefer, Wolf-Dieter Pfeifer | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853190 | Process & apparatus for the production of hydrogen cyanide | Reinhard Manner, Hans Schaefer, Wolf-Dieter Pfeifer | 1989-08-01 |