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| Number | Title | Issue Date |
| 5864184 | Interface circuitry for facilitating installation of a control device Interface circuitry for facilitating the installation of a control device is presented. One embodiment includes an interface circuit with first and second terminals that can be coupled interchangeably to a load and the utility hot of an AC power source, t... | 01/26/1999 |
| 5701117 | Occupancy detector The present invention relates to an occupancy detector device that is capable of regulating the on/off status of electrical appliances, such as lights, depending on the presence of people in a given monitored area. The occupancy detector of the present in... | 12/23/1997 |