<http://webisa.webdatacommons.org/201642531>	<http://www.w3.org/ns/prov#value>	"register/comparators 18 and 19 can store designation of only those barriers actually in use, i.e. previously actuated by a command and not yet de-activated." .
<http://webisa.webdatacommons.org/201642531>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/prov/429069667>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/201642531> .
<http://webisa.webdatacommons.org/201642531>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .