Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795625 | Method of manufacturing barium sulphide | Maria Switonska-Oskedra, Tadeusz Grzywaczewski, Hubert Pisarski, Stanislaw Gazda, Genowefa Sybilska | 1989-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795625 | Method of manufacturing barium sulphide | Maria Switonska-Oskedra, Tadeusz Grzywaczewski, Hubert Pisarski, Stanislaw Gazda, Genowefa Sybilska | 1989-01-03 |