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Re:House Keys copyable from 200 ft away via camera by tagnu_ on Friday June 24, 2011 @09:13AM (#2692031)
An auto retractable design for a key, like one of those usb flash drives might help. http://www.usbmemorysticks.net/wp-content/gallery/sandisk-cr...

By default, the key will be hidden inside it's case. When the user wishes to open the lock, he can just place the key on the keyhole and start inserting it. :)

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