<http://webisa.webdatacommons.org/prov/208869469>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/328497853> .
<http://webisa.webdatacommons.org/328497853>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/328497853>	<http://www.w3.org/ns/prov#value>	"More particularly, the method and medium of the present invention is of especial utility indetecting unauthorized copies of magnetic cards adapted to encode credit data, identification or other information and is used to elicit service from one of a plurality of automatic service rendering or product vending machines." .
<http://webisa.webdatacommons.org/prov/507844659>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/328497853> .
<http://webisa.webdatacommons.org/328497853>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patentgenius.com> .