| http://www.w3.org/ns/prov#value | - An electronic communication including a message, a recipient identifier identifying...http://www.google.com/patents/US6539385?utm_source=gb-gplus-sharePatent US6539385 - Dual-use email systemAdvanced Patent SearchPublication numberUS6539385 B1Publication typeGrantApplication numberUS 09/591,517Publication dateMar 25, 2003Filing dateJun 9, 2000Priority dateJun 11, 1999Fee statusPaidPublication numb
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