About: http://webisa.webdatacommons.org/377269098

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	A protective layer 18 is coated over metal layer 17 as heretofore described to a thickness of n(??/4) where n is an integer formed of a transparent material such as Al2 O3.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com