Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849964 | Multistage switching system for switching N1 input channels to N2 output channels | — | 1989-07-18 |
| 4606057 | Arrangement for checking the counting function of counters | Johan E. A. Hartman, Nicolaas Bohlmeyer | 1986-08-12 |
| 4545050 | Method of and arrangement for establishing a conference connection in a TDM communication system | Nicolaas Bohlmeyer, Johan E. A. Hartman | 1985-10-01 |