The present application describes an electronically powered postage stamp or mailing label and including a radio frequency identification (RFID) device and system mounted between the opposing and facing major surfaces thereof. The RFID device and system includes an integrated circuit transceiver chip...http://www.google.com.au/patents/US6741178?utm_source=gb-gplus-sharePatent US6741178 - Electrically powered postage stamp or mailing or shipping label operative with radio frequency (RF) communication
