About: http://webisa.webdatacommons.org/450219253

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	FIG. 15 is a second alternative of the key coupling system, showing a pivoted reflector.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com