| http://www.w3.org/ns/prov#value | - the method including an operation of sending a reminder letter to the address of the addressee only if...http://www.google.es/patents/US20060074706?utm_source=gb-gplus-sharePatente US20060074706 - Method of handling reply envelopes B???squeda avanzada de patentes N???mero de publicaci???nUS20060074706 A1Tipo de publicaci???nSolicitud N???mero de solicitudUS 11/233,476 Fecha de publicaci???n6 Abr 2
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