About: http://webisa.webdatacommons.org/203713819

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	This invention pertains to replication of diffractive optical elements embodied as surface relief structures and profiles and particularly to replication of higher quality and more durable optical elements than those in the related art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com