| Application number | Title of the application | Filing Date | Status |
|---|
| 07/675488 | CONFIRMING IDENTITY OF TELEPHONE CALLER | Mar 25, 1991 | Abandoned |
| 07/672858 | AUTOMATIC PERSONAL SEARCH TELEPHONE SYSTEM | Mar 19, 1991 | Abandoned |
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| 07/660279 | INTEGRATED APPLICATION CONTROLLED CALL PROCESSING AND MESSAGING SYSTEM | Feb 20, 1991 | Abandoned |
| 07/658400 | TELEPHONE EXCHANGE SYSTEM | Feb 19, 1991 | Abandoned |
| 07/658405 | PRIVATE BRANCH EXCHANGE SYSTEM | Feb 19, 1991 | Abandoned |
| 07/654003 | NETWORK SYSTEMS | Feb 11, 1991 | Abandoned |
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| 07/634255 | DYNAMIC NETWORK CALL DISTRIBUTOR | Dec 25, 1990 | Abandoned |
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