| 摘要 |
A system for locating a misplaced article comprising a transmitter capable of generating and transmitting a first signal, a receiver/transmitter capable of receiving the first signal and transmitting a second signal, and a location indicator capable only of receiving the second signal and generating a response thereto. The response is detectable by a person and preferably is an audible sound. The location indicator is free of components that would permit it to generate and transmit an electronic signal to another electronic device. The location indicator is pre-engaged with the article before it is misplaced.
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