Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5343461 | Full duplex digital transmission facility loop-back test, diagnostics and maintenance system | John Barton, William J. Hanby, Bruce Kuhn, Michael F. Lathrope, Arthur J. Varga | 1994-08-30 |