About: http://webisa.webdatacommons.org/177390286

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 a diagrammatic axial section through a conventional diffractive contact lens in relief in accordance with the prior art; and
http://www.w3.org/ns/prov#wasQuotedFrom	google.com