Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9800956 | Regional independent tandem telephone switch | Rogier Ducloo, Richard Dean Terpstra | 2017-10-24 |
| 9634941 | Regional independent tandem telephone switch | Rogier Ducloo, Richard Dean Terpstra | 2017-04-25 |