Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649996 | Double walled screen-filter with perforated joints | by Djurdjina Kojicic, legal representative | 1987-03-17 |
| 4583594 | Double walled screen-filter with perforated joints | — | 1986-04-22 |
| 4526230 | Double walled screen-filter with perforated joints | — | 1985-07-02 |