<http://webisa.webdatacommons.org/2767677>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/59901029>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/2767677> .
<http://webisa.webdatacommons.org/2767677>	<http://www.w3.org/ns/prov#value>	"Such conductive materials as chromium, aluminum, or nickel can be vacuum deposited on transparent film substrates in sufficiently thin layers to allow photoconductive elements prepared therewith to be exposed from either side of such elements." .
<http://webisa.webdatacommons.org/2767677>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .