<http://webisa.webdatacommons.org/380119523>	<http://www.w3.org/ns/prov#value>	"Patent US5311594 - Fraud protection for card transactions - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsThe problems of fraud in card transactions can be reduced by, after requiring the person engaged in the card transaction to initially identify himself, such as by supplying a card number, a) requesting, the person to supply as authent" .
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