| Application number | Title of the application | Filing Date | Status |
|---|
| 08/229105 | APPARATUS AND METHOD FOR TRACKING AND REPORTING LOCATION OF MOTOR VEHICLES | Apr 7, 1994 | Abandoned |
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| 08/088667 | AIRCRAFT COMMUNICATION HEADSET TESTER | Jul 5, 1993 | Pending |
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| 08/022587 | STEREO FM RECEIVER, NOISE CONTROL SYSTEM THEREFOR | Feb 24, 1993 | Abandoned |
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| 07/971009 | ELECTRONIC CANCELLATION OF AMBIENT NOISE IN TELEPHONE RECEIVERS | Nov 1, 1992 | Abandoned |
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| 07/957125 | FREQUENCY SELECTIVE SOUND BLOCKING SYSTEM FOR HEARING PROTECTION | Oct 6, 1992 | Abandoned |
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