| 7529349 |
Automated telephone line test apparatus with intelligent diagnostic function |
Robert J. Lysaght, Donald Finger, Jeffrey Hahn, Howard Citron, Yu-Ling Wu |
2009-05-05 |
| 7298828 |
Automated telephone line test apparatus with intelligent diagnostic function |
Robert J. Lysaght, Donald Finger, Jeffrey Hahn, Howard Citron, Yu-Ling Wu |
2007-11-20 |
| 6614880 |
Automated telephone line test apparatus with intelligent diagnostic function |
Robert J. Lysaght, Donald Finger, Jeffrey Hahn, Howard Citron, Yu-Ling Wu |
2003-09-02 |
| 6438212 |
Automated telephone line test apparatus with intelligent diagnostic function |
Robert J. Lysaght, Donald Finger, Jeffrey Hahn, Howard Citron, Yu-Ling Wu |
2002-08-20 |
| 6078646 |
Caller ID activated test device for testing a telephone subscriber loop/access line |
Peter J. McLaughlin, Warren Schmitt |
2000-06-20 |