<http://webisa.webdatacommons.org/300239531>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patentgenius.com> .
<http://webisa.webdatacommons.org/prov/210274499>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/300239531> .
<http://webisa.webdatacommons.org/300239531>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/300239531>	<http://www.w3.org/ns/prov#value>	"In thiscase, the key is a device to verify the customer.FIG. 6 shows another embodiment of the present invention." .