Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812790 | Toothed coupling iris | Martin B. Hammond | 1989-03-14 |
| 4802234 | Mode selective band pass filter | Martin B. Hammond, Rolf Kich | 1989-01-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812790 | Toothed coupling iris | Martin B. Hammond | 1989-03-14 |
| 4802234 | Mode selective band pass filter | Martin B. Hammond, Rolf Kich | 1989-01-31 |