<http://webisa.webdatacommons.org/141070694>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/141070694>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/141070694>	<http://www.w3.org/ns/prov#value>	"FIG. 11B is a plan view of a portion of a light curtain implemented using the module of FIG. 11A to achieve user variable angular displacement, according to the present invention;" .
<http://webisa.webdatacommons.org/prov/246706972>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/141070694> .