Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800265 | Optical fiber continuity testing with pulsating optical test signal | Robert L. Marzari, Robert Keith Southard | 1989-01-24 |
| 4797556 | Optical continuity testing apparatus with pulsating transmitter | Robert L. Marzari, Robert Keith Southard | 1989-01-10 |