An object locator system includes a transmitter unit which sends an RF signal upon actuating a pushbutton, and a receiver unit attached to or incorporated into an object for detecting the RF signal and illuminating a light element only for so long as the RF signal is sent by the transmitter unit. This...http://www.google.fr/patents/US6147602?utm_source=gb-gplus-shareBrevet US6147602 - Luggage locator system
