About: http://webisa.webdatacommons.org/288673453

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. 1 is an overall cross sectional view of a reducing projection optical system for use in a copy which uses a conventional refracting system;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au