| http://www.w3.org/ns/prov#value | - In a preferred embodiment, a receipt is printed that contains machine-readable information, such as bar codes or other suitable machine-readable information....http://www.google.com/patents/US20050192884?utm_source=gb-gplus-sharePatent US20050192884 - Credit card chargeback inquiry handling system and methodAdvanced Patent SearchPublication numberUS20050192884 A1Publication typeApplicationApplicat
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