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<http://webisa.webdatacommons.org/prov/143524013>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/165884169> .
<http://webisa.webdatacommons.org/165884169>	<http://www.w3.org/ns/prov#value>	"Accordingly, what is needed is a method and apparatus to manufacture vacuum packaging film having multiple layers of substantially improved structure in an easy to manufacture and therefore economical process." .
<http://webisa.webdatacommons.org/prov/277110434>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/165884169> .
<http://webisa.webdatacommons.org/165884169>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .